Select your product model code for a manual customized for your product.
Select the Service Interval filter to display the service steps for your desired procedure.
Click on the icon at the top right corner of the screen to display the complete list of tools and supplies for this manual in a scrollable dropdown list.
SAFETY FIRST!
We care about YOU. Please, always wear your safety glasses and protective gloves when servicing RockShox products. Protect yourself! Wear your safety gear!
Suspension products contain pressurized air, nitrogen, springs, and oil.
ALWAYS WEAR CERTIFIED SAFETY GLASSES (ANSI Z87.1, EN166 EU) when performing any service on a suspension product (suspension fork, rear shock, seat post). Failure to wear proper safety glasses can result in SERIOUS INJURY OR DEATH.
We recommend that you have your RockShox suspension serviced by a qualified bicycle mechanic. Servicing RockShox suspension requires knowledge of suspension components, as well as the use of specialized tools and lubricants/fluids. Failure to follow the procedures outlined in this service manual may cause damage to your component and void the warranty.
Visit www.sram.com/service for the latest RockShox Spare Parts catalog and technical information. For order information, please contact your local SRAM distributor or dealer.
Information contained in this publication is subject to change at any time without prior notice.
Your product's appearance may differ from the pictures contained in this publication.
♻ For recycling and environmental compliance information, please visit sram.com/en/company/about/environmental-policy-and-recycling
If you have any questions about the service of these components, consult a qualified bicycle mechanic.
PRESSURIZED DEVICE
Suspension products contain pressurized air, nitrogen, springs, and oil.
Always wear certified safety glasses (ANSI Z87.1, EN166 EU) when performing any service on a suspension product (suspension fork, rear shock, seat post). Failure to wear proper safety glasses can result in SERIOUS INJURY OR DEATH.
Never attempt to disassemble a suspension product (suspension fork, rear shock, seat post) before the product is fully depressurized, unless otherwise instructed. Follow depressurization procedures, and remove the air valve as instructed, before attempting disassembly of a suspension product. Failure to fully depressurize a suspension product before disassembly can result in SERIOUS INJURY OR DEATH.
When performing service on a suspension product, keep your eyes, face, and body away from any part or lubricant that can suddenly eject under high pressure. Never direct any pressurized suspension part at a person. Failure to follow these preventative measures can result in SERIOUS INJURY OR DEATH to you or someone else.
Never attempt to puncture, crush, or incinerate any assembled suspension product (suspension fork, rear shock, seat post). Failure to do so can result in SERIOUS INJURY OR DEATH.
CRASH HAZARD
Parts must be tightened to the specified torque. Failure to do so can result in SERIOUS INJURY OR DEATH.
Retaining rings must be fully seated in the retaining ring groove. confirm the retaining ring is fully seated in the retaining ring groove after installation. Failure to do so can result in SERIOUS INJURY OR DEATH.
Do not use vinegar of any type to clean any part of a RockShox suspension product. Vinegar can cause permanent damage to parts which can, over time, result in product structural failure, SERIOUS INJURY OR DEATH.
Do not injest any suspension oil, fluid, grease, lubricant, or cleaner. Ingestion could lead to SERIOUS INJURY OR DEATH. Seek immediate medical attention if any suspension oil, fluid, grease, lubricant, or cleaner is ingested.
Suspension products may contain oil, fluid, grease, and/or lubricants which can lead to skin irritation.
Always wear nitrile gloves when working with suspension products (suspension fork, rear shock, seat post). Failure to properly protect your skin can result in irritation. Seek medical attention if your skin is adversely affected by any suspension oil, fluid, grease, lubricant, and/or cleaner.
Use care when working with sharp tools and parts. Never use sharp tools if coated with oil and/or grease. Clean and remove all oil and/or grease from your hands and tools before working with any sharp tool or part. Failure to do so can result in personal injury.
Always wear safety glasses. Do not allow oil, fluid, grease, lubricant, or cleaner to contact your eyes or face. Seek immediate medical attention if irritation occurs.
Place an oil pan on the floor underneath the suspension product during service to catch any drained or spilled fluids. To avoid a slip and fall, and possible injury or harm, immediately clean any suspension oil, fluid, grease, or lubricant from the floor in your work area.
Remove the component from the bicycle before service.
Disconnect and remove the remote cable or hydraulic hose from the fork or rear shock, if applicable. For additional information about RockShox remotes, user manuals are available at www.sram.com/service.
Clean the exterior of the product with mild soap and water to avoid contamination of internal sealing part surfaces.
The following procedures should be performed throughout service, unless otherwise specified.
Clean the part with RockShox Suspension Cleaner or isopropyl alcohol and a clean, lint-free shop towel. For hard to reach places (e.g. upper tube, lower leg), wrap a clean, lint-free shop towel around a non-metallic dowel to clean the inside.
Clean the sealing surface on the part and inspect it for scratches.
CRASH HAZARD
DO NOT use vinegar of any type to clean any part of a RockShox suspension product. Vinegar can cause permanent damage to parts which can, over time, result in product structural failure, serious injury, and possibly death.
Replace the o-ring or seal with a new one from the service kit. Use your fingers or a pick to pierce and remove the old seal or o-ring.
Apply grease to the new seal or o-ring.
Do not scratch any sealing surfaces when servicing the product. Scratches can cause leaks. Consult the spare parts catalog to replace the damaged part.
Use aluminum soft jaws when placing a part in a bench vise.
Tighten the part with a torque wrench to the torque value listed in the red bar. When using a crowfoot socket and torque wrench, install the crowfoot socket at 90 degrees to the torque wrench.
CRASH HAZARD
Parts must be tightened to the specified torque. Failure to do so can result in SERIOUS INJURY OR DEATH.
Product model code and specification details can be identified with the serial number on the product. Model codes can be used to identify the product type, series name, model name, and product version associated with the production model year. Product details can be used to identify spare parts, service kit, and lubricant compatibility.
Model Code example: FS-LYRK-UFA-D1
FS = Product Type - Front Suspension
LYRK = Platform/Series - Lyrik
UFA = Model - Ultimate Flight Attendant
D1 = Version - (D - fourth generation, 1 - first iteration)
To identify the model code, locate the serial number on the product and enter it into the Search by Model Name or Serial Number field at www.sram.com/service.
For SRAM Warranty information, visit: sram.com/en/service/warranty.
For SRAM Trademark information, visit: sram.com/website-terms-of-use.
Part | Tool | Torque |
|---|---|---|
Bottom bolt - air spring and damper | 5 mm hex bit socket | 7 N•m (60 in-lb) |
Bottomless Token | 8 mm hex bit socket | 4 N•m (35 in-lb) |
Retaining screw - compression adjuster knob | 2.5 mm hex bit socket | 1.35 N•m (12 in-lb) |
Retaining screw - compression remote spool | 2 mm hex bit socket | 1.35 N•m (12 in-lb) |
Set screw - cable - remote spool | 2 mm hex bit socket | 0.37 N•m (3.3 in-lb) |
Set screw - housing stop - remote spool | 2 mm hex bit socket | 0.37 N•m (3.3 in-lb) |
Shaft nut - air spring shaft (DebonAir) | 12 mm socket | 3.3 N·m (29 in-lb) |
Top cap - compression damper | RockShox Top Cap/Cassette Tool (or standard cassette tool) | 28 N•m (250 in-lb) |
Top cap - compression damper - remote | 24 mm socket | 28 N•m (250 in-lb) |
Top cap - air spring | RockShox Top Cap/Cassette Tool (or standard cassette tool) | 28 N•m (250 in-lb) |
Top cap - coil | 24 mm socket | 28 N•m (250 in-lb) |
Fork Model and Damper | Damper Oil | Damper Oil Volume | Damper Side Lower Leg | Oil Weight and Volume |
|---|---|---|---|---|
Psylo Gold RC A1 - Isolator RC | Maxima PLUSH 7wt Suspension Oil | 168 mL | Maxima PLUSH Dynamic Suspension Lube Light | 10 mL |
Psylo Silver RC A1 - Motion Control RC | Maxima PLUSH 7wt Suspension Oil | 190 mL | Maxima PLUSH Dynamic Suspension Lube Light | 10 mL |
Psylo Silver R A1 - Rebound | Maxima PLUSH 7wt Suspension Oil | 190 mL | Maxima PLUSH Dynamic Suspension Lube Light | 10 mL |
Fork Model and Damper | Spring Oil | Spring (Positive) Oil Volume | Spring (Negative) Oil Volume | Spring Piston or Coil Spring Grease | Spring Side Lower Leg | Oil Weight and Volume |
|---|---|---|---|---|---|---|
Psylo Gold RC A1 - Isolator RC | Maxima PLUSH Dynamic Suspension Lube Heavy | 2 mL | 2 mL | SRAM Butter | Maxima PLUSH Dynamic Suspension Lube Light | 10 mL |
Psylo Silver RC A1 - Motion Control RC | Maxima PLUSH Dynamic Suspension Lube Heavy | 2 mL | 2 mL | SRAM Butter | Maxima PLUSH Dynamic Suspension Lube Light | 10 mL |
Psylo Silver R A1 - Rebound | Maxima PLUSH Dynamic Suspension Lube Heavy | n/a | n/a | SRAM Butter | Maxima PLUSH Dynamic Suspension Lube Light | 10 mL |
Use ONLY RockShox, SRAM, and Maxima suspension oils/fluids and grease, unless otherwise specified. Use of any other lubricants can damage seals and decrease performance.
1. Retaining screw | 13. Rebound damper shaft | 25. Lower leg arch |
2. Low speed compression (LSC) adjuster knob | 14. Maxle Stealth | 26. Dust wiper |
3. Compression damper top cap | 15. Crush washer | 27. Brake hose guide |
4. Crown | 16. Crush washer retainer | 28. Air spring piston |
5. IFP spring | 17. Rebound bottom bolt | 29. Top out bumper |
6. Internal floating piston (IFP) | 18. Rebound adjuster knob | 30. Air spring sealhead |
7. Compression damper piston | 19. Steerer tube | 31. Retaining ring |
8. Foam ring | 20. Air cap | 32. Air spring shaft |
9. Rebound damper piston | 21. Air spring top cap | 33. Lower leg |
10. Rebound sealhead | 22. Bottomless Token(s) - 35 mm grey (optional) | 34. Shaft nut |
11. Rebound sealhead spacer | 23. Sag o-ring | 35. Crush washer |
12. Retaining ring | 24. Upper tube | 36. Crush washer retainer |
37. Air spring bottom bolt |
1. Retaining screw | 13. Rebound damper shaft | 25. Lower leg arch |
2. Remote spool and housing stop | 14. Maxle Stealth | 26. Dust wiper |
3. Compression damper top cap | 15. Crush washer | 27. Brake hose guide |
4. Crown | 16. Crush washer retainer | 28. Air spring piston |
5. IFP spring | 17. Rebound bottom bolt | 29. Top out bumper |
6. Internal floating piston (IFP) | 18. Rebound adjuster knob | 30. Air spring sealhead |
7. Compression damper piston | 19. Steerer tube | 31. Retaining ring |
8. Foam ring | 20. Air cap | 32. Air spring shaft |
9. Rebound damper piston | 21. Air spring top cap | 33. Lower leg |
10. Rebound sealhead | 22. Bottomless Token(s) - 35 mm grey (optional) | 34. Shaft nut |
11. Rebound sealhead spacer | 23. Sag o-ring | 35. Crush washer |
12. Retaining ring | 24. Upper tube | 36. Crush washer retainer |
37. Air spring bottom bolt |
Parts
2025+ (Gen A) Psylo - 200 Hour Service Kit
2025+ (Gen C) Domain - 200 Hour Service Kit
Safety and Protection Supplies
Apron
Clean, lint-free shop towels
Nitrile gloves
Oil pan
Safety glasses
Lubricants and Fluids
Maxima PLUSH 7wt Suspension Oil
Maxima PLUSH Dynamic Suspension Lube Heavy (air spring)
Maxima PLUSH Dynamic Suspension Lube Light (lower legs)
RockShox Suspension Cleaner or isopropyl alcohol
SRAM Butter Grease
Threadlocker Loctite 2760 (red) or equivalent
RockShox Tools
RockShox Bleed Syringe
RockShox Dust Seal Installation Tool (38 mm) or RockShox x Abbey Bike Tools 38 mm
Flangeless Dust Seal Installation Tool
RockShox Dust Seal Installation Tool (35 mm) or RockShox x Abbey Bike Tools 35 mm
Flangeless Dust Seal Installation Tool
RockShox Rear Shock Vise Blocks (Domain Gold, Psylo Gold)
RockShox Schrader Valve Tool
RockShox Shock Pump
RockShox Top Cap/Cassette Tool (3/8" / 24 mm) or RockShox x Abbey Bike Tools Top
Cap/Cassette Tool
Bicycle Tools
Bicycle work stand
Downhill tire lever
Shock pump
Common Tools
Bench vise with aluminum soft jaw inserts
Heat gun (Psylo Silver R)
Hex bit sockets: 2, 2.5, 5 mm
Hex wrenches: 2, 2.5, 5, 8 mm
Internal retaining ring pliers (large)
Long plastic dowel
Open end wench: 12 mm
Pick (metallic) - air spring retaining ring
Pick (non-metallic) - for all o-rings and seals
Plastic mallet
Plastic tube (split conduit loom) or similar - air spring and damper shaft protective cover
Razor blade or utility knife (Psylo Silver R)
Socket: 12, 24 mm
Socket: OD 20 - 21 mm, 21 - 22 mm
Socket wrench
Torque wrench
Clamp the fork in a bicycle work stand vertically with the steerer tube oriented upward.
PRESSURIZED DEVICE
To avoid possible SERIOUS INJURY OR DEATH, position the fork vertically with the steerer tube upward so the top cap is directed upward and away from you and others.
Turn the rebound adjuster knob counterclockwise until it stops. This is the full open/fast rebound setting.
Remove the rebound damper adjuster knob.
Psylo: Cover the rebound adjuster knob with a shop towel to protect it. Pull the adjuster knob from the bottom bolt with needle nose pliers.
Psylo Silver R - Coil Spring: Proceed to step 8.
RC: Adjust the compression damper adjuster knob counterclockwise until it stops, to the full open position.
DebonAir and Solo Air: Remove the air valve cap.
PRESSURIZED DEVICE
Always wear certified safety glasses (ANSI Z87.1, EN166 EU).
Verify all air pressure is removed from the suspension component. Failure to do so can result in SERIOUS INJURY OR DEATH. Refer to the Suspension Safety Precautions and Warnings section for detailed Pressurized Device warnings and instructions.
DebonAir and Solo Air: Perform the following air transfer and purge process to depressurize the positive and negative air spring chambers.
While holding the lower leg arch and pushing the lower leg down, depress the Schrader valve and slowly release air pressure. While depressing the Schrader valve, SLOWLY allow the lower leg to compress while applying opposing pressure until you feel a sudden decrease in compressing resistance, then hold the lower leg in place to allow both air chambers to depressurize. As air transfers from the negative to the positive air chamber, air transfer should be heard.
While depressing the Schrader valve, push the lower leg down to extend the fork until there is no resistance and the fork can be fully extended. The negative air spring chamber is fully depressurized when the fork can fully be extended and no resistance is felt.
Repeat the process two to three times.
DebonAir and Solo Air: Remove the Schrader valve core from the top cap and set it aside.
DebonAir and Solo Air: Compress and extend the fork to confirm the negative air chamber has been depressurized.
Place an oil pan under the fork to catch the draining oil.
Loosen both bottom bolts 3 to 4 turns.
Place an oil pan on the floor underneath the suspension product during service to catch any drained or spilled fluids. To avoid a slip and fall, and possible injury or harm, immediately clean any suspension oil, fluid, grease, or lubricant from the floor in your work area.
Insert a 5 mm hex bit socket into the bolt, and tap the socket to avoid damage to the lower leg. Strike the socket to dislodge the spring and damper shafts from the lower leg. The bolt head should contact the bottom of the lower leg.
Remove each bottom bolt. Clean each bolt and set them aside.
Do not strike the fork lower leg with mallet as this could damage the lower leg.
Firmly pull the lower leg downward until fluid begins to drain. Continue pulling downward to remove the lower leg.
If the lower leg does not slide off of the upper tube or if oil does not drain from either side, the press fit of the shaft(s) into the lower leg may still be engaged. Reinstall the bottom bolts 2 to 3 turns and repeat the previous step.
Do not strike the fork arch with any tool when removing the lower leg as this could damage the lower leg.
Remove the foam rings.
Clean the foam rings.
Replace the foam rings if worn, damaged, or excessively contaminated.
Soak the foam rings in Maxima PLUSH Dynamic Suspension Lube Light.
Clean the inside and outside of the lower leg.
Clean the wiper seals.
Install the foam rings under the wiper seals.
Confirm the foam rings are installed evenly and square in the space under the wiper seals and do not protrude out of the groove.
Remove and discard the foam rings.
Remove the outer wire springs from the dust wiper seals.
Stabilize the lower leg on a bench top. Place the tip of a downhill tire lever under the wiper seal. Press down on the downhill tire lever handle to remove the seal.
Repeat on the other side. Discard the wiper seals.
Keep the lower leg stable. Do not allow the lower leg to twist in opposite directions, compress toward each other, or be pulled apart. This will damage the lower leg.
Clean the inside and outside of the lower leg.
Soak new foam rings in Maxima PLUSH Dynamic Suspension Lube.
Install the new foam rings into the lower leg.
Remove the outer wire spring from each new dust wiper seal and set them aside.
Insert the narrow end of a new wiper seal into the recessed end of the 35 mm RockShox Dust Seal Installation Tool.
Stabilize the lower leg on a benchtop. Hold the lower leg steady and press, or tap with a mallet, the wiper seal into the lower leg until the top of the seal is flush with the top of the lower leg.
Repeat on the other side.
Only press, or tap with a mallet, the wiper seal into the lower leg until it is flush with the top surface of the lower leg. Pressing the wiper seal below the top surface of the lower leg will compress the foam ring.
Install the outer wire springs.
Procedures are the same for Domain Gold and Psylo Gold unless otherwise pictured or described.
Domain C1 parts are not compatible with Domain A1-B1 unless otherwise specified in the RockShox Spare Parts Catalog. ZEB A1+ parts are not compatible with Domain C1 unless otherwise specified in the RockShox Spare Parts Catalog.
Inspect each part for scratches. Do not scratch any sealing surfaces when servicing your suspension. Scratches can cause leaks.
When replacing seals and o-rings, use your fingers or a pick to remove the seal or o-ring. Spray RockShox Suspension Cleaner or isopropyl alcohol onto each part and clean with a lint-free shop towel.
Apply SRAM Butter Grease to the new seals and o-rings.
Clamp the fork in a bicycle work stand vertically with the steerer tube oriented upward.
PRESSURIZED DEVICE
To avoid possible SERIOUS INJURY OR DEATH, position the fork vertically with the steerer tube upward so the top cap is directed upward and away from you and others.
Confirm the Schrader valve core is NOT INSTALLED in the air spring top cap before proceeding. Remove the Schrader valve core if installed.
The positive and negative air spring chambers must be FULLY depressurized before removing the air spring top cap assembly.
Slowly compress and extend (push up/pull down) the air spring shaft to allow any remaining negative air pressure to bypass the air transfer dimple on the inside surface of the upper tube.
The negative air spring chamber is fully depressurized when the shaft can be pulled to full extension. When released, the air spring shaft will retract into the upper slightly due to pressure created when the air piston is extended past the air bypass dimple in the upper tube. This is normal.
Repeat the process two to three times.
PRESSURIZED DEVICE
Always wear certified safety glasses (ANSI Z87.1, EN166 EU).
Verify all air pressure is removed from the suspension component. Failure to do so can result in SERIOUS INJURY OR DEATH. Refer to the Suspension Safety Precautions and Warnings section for detailed Pressurized Device warnings and instructions.
Unthread and remove the air spring top cap. Press down firmly when loosening the top cap.
The fork top caps are tightened to a high torque value. Ensure the fork is held securely in the bicycle stand. To avoid damage to the top cap, press the top cap / cassette tool squarely and firmly down when loosening. Use a socket wrench with a long handle for extra leverage.
Clean the upper tube threads.
Remove and discard the top cap o-ring.
Apply grease to the o-ring and install it.
Install a section of protective split plastic tube, or a shop towel, around the air spring shaft to protect the shaft surface during removal.
Remove the retaining ring.
Do not scratch the air spring shaft. Scratches on the air shaft will allow air to bypass the seal head into the lower leg, resulting in reduced spring performance.
Remove the split plastic tube or shop towel from the shaft.
Wrap a shop towel around the shaft nut for added grip.
Firmly pull the air spring assembly out of the upper tube.
Clean the inside and outside of the upper tube.
Inspect the inside and outside of the upper tube for damage.
Scratches on the inside surface of the upper tube can cause air to leak. If an internal scratch is visible, the crown steerer upper tube assembly may need to be replaced.
Bottomless Tokens can be added to, or removed from the air spring top cap to fine-tune the bottom-out feel and spring curve. Use the table below to help determine the number of Bottomless Tokens that can be used with each maximum fork travel option. If fork travel is changed from stock, it may be necessary to add or remove Bottomless Tokens.
Refer to the RockShox Suspension Tuning and Setup Guide for more details. Refer to the RockShox Spare Parts Catalog at sram.com/service for available air spring and Bottomless Token kits. For part ordering information, please contact your local SRAM distributor or dealer.
Fork Travel (mm) | Bottomless Tokens (grey) Factory Installed | Bottomless Tokens (grey) Maximum |
|---|---|---|
160 | 0 | 3 |
150 | 0 | 3 |
140 | 1 | 3 |
130 | 1 | 3 |
Bottomless Tokens reduce air volume in your fork and create greater ramp at the end of the fork travel. Add or remove Tokens to tune your fork's bottomless feel.
Thread a Bottomless Token into another Bottomless Token, or into the the bottom of the top cap, and tighten.
A Domain Gold air spring assembly is pictured in this section. Procedures are the same for Psylo Gold unless otherwise pictured or described.
Domain C1 parts are not compatible with Domain A1-B1 unless otherwise specified in the RockShox Spare Parts Catalog. ZEB A1+ parts are not compatible with Domain C1 unless otherwise specified in the RockShox Spare Parts Catalog.
The air spring shaft nut must be removed before the sealhead can be removed. Remove the air spring shaft nut.
Clamp the air spring shaft, just below the shaft nut, in RockShox Rear Shock Vise Blocks (10 mm slot). Clamp the air shaft only tight enough so it does not spin when the shaft nut is removed.
Unthread and remove the shaft nut.
Scratches on the air spring shaft can cause air to leak. If a scratch is visible the air spring assembly may need to be replaced.
Clean the shaft and shaft nut threads.
Remove the air spring shaft from the vise.
Remove the sealhead and top out bumper.
Clean and inspect the air spring shaft for damage.
Scratches on the air spring shaft can cause air to leak. If a scratch is visible the air spring assembly may need to be replaced.
Remove and discard the quad ring seal from the air piston.
Clean the air piston.
Apply grease to the quad ring seal and install it.
Do not scratch the air piston. Scratches will cause air to leak.
Remove and discard the outer and inner seals from the sealhead.
To remove the inner wiper seal, carefully pierce the wiper seal and pry it out of the groove. Do not allow the pick to contact the sealhead. Once pierced, the wiper seal cannot be reused. Discard the wiper seal.
Do not scratch the sealhead. Scratches will cause air to leak.
Use care when working with sharp tools and parts. Never use sharp tools coated with oil and/or grease. Clean and remove all oil and/or grease from your hands and gloves, and tools before working with any sharp tool or part. Failure to do so can result in personal injury.
Clean the sealhead.
Apply grease to the (A) inner wiper seal and install it into the inner gland with the tapered side out. Use the air spring shaft to guide and seat the wiper seal into the groove.
Apply grease to the inner o-ring seal and install it into the inner gland. Use the air spring shaft to guide and seat the o-ring seal into the groove.
Apply grease to the outer o-rings and install them onto the sealhead.
Apply grease to the inside of the top out bumper and install it onto the air spring shaft.
Apply grease to the air spring shaft.
Optional Travel Change: If travel is changed, apply grease to the air spring shaft before installation.
Install the sealhead assembly, flat side first.
Optional Travel Change: If travel is changed, apply grease to the sealhead o-rings before installation.
Remove the grease from the spring shaft and shaft threads.
Apply Loctite Threadlocker (red), or equivalent, to 2-3 threads on the shaft nut. Thread the shaft nut onto the air spring shaft finger tight.
CRASH HAZARD
To avoid separation of parts, threadlocker must be applied as instructed. Failure to apply threadlocker could result in separation of the parts, and possible SERIOUS INJURY OR DEATH.
Clamp the air spring shaft, just below the shaft nut, in RockShox Rear Shock Vise Blocks (10 mm slot). Clamp the air shaft only tight enough so it does not spin when the shaft nut is installed.
Install the shaft nut onto the air spring shaft.
Scratches on the air spring shaft can cause air to leak. If a scratch is visible the air spring assembly may need to be replaced.
Tighten the shaft nut to the specified torque.
CRASH HAZARD
Parts must be tightened to the specified torque. Failure to do so can result in SERIOUS INJURY OR DEATH.
Scratches on the air spring shaft can cause air to leak. If a scratch is visible the air spring assembly may need to be replaced.
Maximum fork travel can be changed by replacing the stock air spring shaft/piston assembly with a shorter or longer air spring shaft/piston assembly. If maximum travel is increased or reduced, a longer or shorter air spring shaft/piston assembly must be installed. For example, to change travel on a fork with a maximum of 140 mm of travel to a maximum of 160 mm of travel, a 160 mm air spring shaft/piston assembly must be installed.
It may also be necessary to add or remove Bottomless Tokens if travel is changed. Refer to Air Spring Travel Change and Bottomless Tokens for details.
Domain C1 parts are not compatible with Domain A1-B1 unless otherwise specified in the RockShox Spare Parts Catalog. ZEB A1+ parts are not compatible with Domain C1 unless otherwise specified in the RockShox Spare Parts Catalog. Refer to the RockShox Spare Parts Catalog at sram.com/service for available air spring assemblies.
For part ordering information, please contact your local SRAM distributor or dealer.
Apply grease to the inside of the end of the upper tube, approximately 50 mm into the tube.
Apply grease to the air piston quad ring seal, and to the sealhead outer o-rings.
Insert the air spring piston into the upper tube. Firmly push the air piston and sealhead into the upper tube.
Inject 2 mL of Maxima PLUSH Dynamic Suspension Lube Heavy into the upper tube, between the piston and sealhead, in the negative chamber.
Optional Travel Change: If travel is changed, install the new air spring assembly.
Install a section of protective split plastic tube around the air spring shaft to protect the shaft surface during removal.
Scratches on the air spring shaft can cause air to leak. If a scratch is visible the air spring assembly may need to be replaced.
Retaining rings have a sharper edged side and a rounder edged side. Installing retaining rings with the sharper edged side facing the tool will allow for easier installation and removal.
Place the tips of the retaining ring pliers into the eyelets of the retaining ring.
Install the retaining ring into the upper tube groove.
Do not scratch the air spring shaft. Scratches will allow air to leak from the air spring, resulting in loss of air pressure and spring performance.
Confirm the retaining ring is properly seated in the retaining ring groove by using the retaining ring pliers to rotate the retaining ring and sealhead back and forth a few times.
CRASH HAZARD
Retaining rings must be fully seated in the retaining ring groove. confirm the retaining ring is fully seated in the retaining ring groove after installation. Failure to do so can result in SERIOUS INJURY OR DEATH.
Remove the split plastic tube from the shaft.
Inject or pour suspension oil into the air spring upper tube.
Install the air spring top cap into the upper tube and tighten it. Press down firmly when tightening the top cap.
CRASH HAZARD
Parts must be tightened to the specified torque. Failure to do so can result in SERIOUS INJURY OR DEATH.
Install the Schrader valve core into the top cap and tighten it finger tight.
Psylo Gold RC: Rotate the compression adjuster knob counterclockwise to the full open position.
Remove the retaining screw and remove the compression damper adjuster knob.
Domain Gold RC, Psylo Gold RC: Remove and discard the white debris ring.
Clean the compression adjuster knob.
Psylo Gold RC Remote: Loosen the housing stop set screw and remove the housing stop. Do not remove the set screw.
Remove the remote spool retaining screw and remove the remote spool.
Remove the white debris ring and discard it.
Clean the remote spool.
Unthread the compression damper top cap. Press down firmly when loosening the top cap.
The fork top caps are tightened to a high torque value. Ensure the fork is held securely in the bicycle stand. To avoid damage to the top cap, press the top cap / cassette tool squarely and firmly down when loosening. Use a socket wrench with a long handle for extra leverage.
Do not scratch the upper air spring shaft. Scratches can cause air to leak.
Thread the rebound bottom bolt into the rebound damper shaft to prevent it from entering the upper tube through the sealhead.
Use the compression adjuster knob (RC), or a 7 mm open end wrench (Remote) to rotate the compression hex adjuster clockwise to the closed/Lock position. This will allow damper oil to assist in pushing the compression damper up and out of the upper tube.
Pull the compression damper top cap up from the crown while simultaneously pushing and pulling the rebound damper shaft into and out of the upper tube. Pushing the rebound damper shaft into the upper tube, while pulling the compression damper up, will assist in removal of the compression damper.
When the top cap is approximately one inch above the crown, wrap a shop towel around the IFP spring to capture oil as the compression damper is removed.
While slowly pulling up firmly on the compression damper, gently rotate the compression damper in a circular motion while gradually and firmly pulling the damper out of the upper tube.
Do not force the damper out of the upper tube. Sudden ejection can cause oil eject from the upper tube.
Always wear safety glasses. Do not allow oil, fluid, grease, lubricant, or cleaner to contact your eyes or face. Seek immediate medical attention if irritation occurs.
Psylo Gold RC: Oil will be inside the IFP cup. Pour the excess oil into an oil pan.
Remove the fork from the work stand and pour the suspension oil into an oil pan.
Clamp the fork into the work stand.
Push the rebound damper shaft into the upper tube.
Remove the retaining ring.
Do not scratch the rebound damper shaft. Scratches will allow oil to leak into the lower leg, resulting in reduced damper performance and potential damage to the fork. If a scratch is visible the rebound damper may need to be replaced.
Psylo Gold RC - Grey spacer
Firmly pull the rebound shaft out of the upper tube and remove the rebound damper, sealhead, and sealhead spacer (if installed).
Psylo Gold RC: Grey spacer
Clean the inside and outside of the upper tube.
Inspect the inside and outside of the upper tube for scratches.
Scratches on the inside surface of the upper tube can cause oil to leak. If an internal scratch is visible, the crown steerer upper tube assembly may need to be replaced.
Remove the compression damper o-rings and discard them.
Clean the top cap and compression damper.
Apply grease to new o-rings and install them.
Remove the bottom bolt, sealhead spacer (RC), and the sealhead.
Psylo Gold RC: Grey spacer
Clean the rebound damper shaft and inspect the shaft for scratches.
Scratches on the air spring shaft can cause air to leak. If a scratch is visible the air spring assembly may need to be replaced.
Remove the glide ring.
Clean the rebound piston.
Install a new glide ring.
Remove the outer sealhead o-ring and discard it.
Remove the inner wiper seal from the sealhead and discard it.
Clean the sealhead.
Do not scratch the sealhead. Scratches will cause oil to leak.
Apply grease to a new inner sealhead (A) wiper seal and install it into the sealhead.
Install the wiper seal in the correct orientation.
Insert the end of the rebound damper shafter into the sealhead enough to cover the inner bushing. The rebound damper shaft will assist installation of the wiper seal.
Push the wiper seal into the inner groove. Push the damper shaft through the sealhead to fully seat the wiper seal. Remove the rebound damper shaft.
Apply grease to new outer sealhead o-rings and install them onto the sealhead.
Install the sealhead onto the rebound damper shaft.
Thread the rebound bottom bolt into the rebound damper shaft.
Slide the sealhead away from the piston.
Insert the rebound damper piston into the upper tube.
Push the sealhead into the upper tube until it stops. Install the sealhead spacer and push it, and the sealhead, into the upper tube until it stops. The retaining ring groove should be visible.
Push the rebound damper into the upper tube.
Retaining rings have a sharper edged side and a rounder edged side. Installing retaining rings with the sharper edged side facing the tool will allow for easier installation and removal.
Place the tips of the retaining ring pliers into the eyelets of the retaining ring.
Install the retaining ring into the upper tube groove.
Do not scratch the rebound damper shaft. Scratches will allow oil to leak into the lower leg, resulting in reduced damper performance and potential damage to the fork. If a scratch is visible the rebound damper may need to be replaced.
Confirm the retaining ring is properly seated in the retaining ring groove by using the retaining ring pliers to rotate the retaining ring and sealhead back and forth a few times.
CRASH HAZARD
Retaining rings must be fully seated in the retaining ring groove. confirm the retaining ring is fully seated in the retaining ring groove after installation. Failure to do so can result in SERIOUS INJURY OR DEATH.
Pull the rebound damper shaft out to the fully extended position. Do not remove the bottom bolt.
Pour suspension oil into the upper tube.
Suspension oil volume is critical. Too much oil reduces available travel and can damage the fork. Too little suspension oil decreases damping performance.
Cover the upper tube with one hand and slowly cycle the rebound damper shaft in and out three to five times to purge trapped air.
Always wear safety glasses. Do not allow oil, fluid, grease, lubricant, or cleaner to contact your eyes or face. Seek immediate medical attention if irritation occurs.
Push the rebound damper shaft into the upper tube. This will assist compression damper installation.
Domain Gold RC, Psylo Gold RC: Use the compression adjuster knob to open the valve (A). Rotate the knob counter clockwise until it stops.
A closed compression valve will restrict oil flow during installation.
Psylo Gold RC Remote: The compression damper is in the open setting by default.
Apply grease to the compression damper o-rings.
With the rebound damper pushed into the upper tube, insert the compression damper into the upper tube. Press down slowly and rotate in a circular motion until the piston and IFP o-rings clear the upper tube threads. Stop pressing down when hydraulic resistance is felt.
With one hand, firmly push the damper down into the upper tube to compress the IFP spring. With your other hand, slowly cycle the rebound damper shaft in and out. This process bleeds the damper and allows oil to purge through the piston and under the IFP.
When air bypass is heard in the compression damper, the damper has been bled. The compression damper should sit lower inside the upper tube.
Use the socket and socket wrench to press down firmly on the top cap to fully seat and install the compression damper into the upper tube. Resistance will be felt as the IFP spring compresses. When the threads make contact, carefully thread the top cap into the upper tube.
Thread the top cap into the upper tube and tighten it. Press down firmly when tightening the top cap.
Domain Gold RC, Psylo Gold RC, Psylo Gold RC Remote: Extreme downward force is required to compress the IFP spring and engage the top cap threads. The fork steerer tube must be clamped into the bicycle work stand very tightly.
Place the knob onto the top cap; do not install the retaining screw. Use the adjuster knob to rotate the compression cam clockwise, until it stops, to the Lock position. Remove the compression adjuster knob.
Push the rebound damper shaft into and out of the upper tube to test the firmest/Lock compression setting. Firm resistance should be felt.
Rotate the compression damper to the open setting and repeat the compression test. Light consistent resistance should be felt with no gaps in movement.
If gaps are felt while cycling the rebound damper shaft, repeat the oil fill and bleed process. If the assembly process was successful, set the compression damper to the open setting.
Use a 7 mm open end wrench to rotate the hex compression adjuster clockwise to the Lock position.
Push the rebound damper shaft into and out of the upper tube to test the firmest/Lock compression setting. Firm resistance should be felt.
Rotate the compression damper to the open setting and repeat the compression test. Light consistent resistance should be felt with no gaps in movement.
If gaps are felt while cycling the rebound damper shaft, repeat the oil fill and bleed process. If the assembly process was successful, set the compression damper to the open setting.
Install a new white debris ring.
Install the compression adjuster knob. When rotated to the full clockwise, closed position, the tab should be approximately 25 degrees from the back center position, or approximately in the 5 o'clock, position.
Install and tighten the retaining screw.
Install a new white debris ring.
Install the housing stop (A) with the housing guide in the forward position, approximately 20 degrees from center, or approximately towards the 1 o'clock, position.
Tighten the set screw finger tight, flush with the edge of the housing stop, or to the specified torque. Confirm the housing stop does not feel loose or have any free play.
To avoid permanent damage to the set screw threads, do not over-tighten the set screw.
Install the remote spool (A) onto the hex adjuster with the cable set screw (B) within approximately the 3 - 5 o'clock positions, toward the back of the crown.
Install and tighten the remote spool retaining screw.
Consult the applicable remote user manual at www.sram.com/en/rockshox/products/remotes for cable and remote installation instructions.
Clean the upper tubes.
Apply grease to the inner surface of the dust wiper seals.
Install the lower leg assembly onto the upper tubes and slide it just enough to engage the upper bushings with the upper tubes.
Make sure both wiper seals slide onto the tubes without folding the outer lip of either seal.
The inside bottom of the lower leg should not contact the air spring shaft and rebound damper shaft.
A gap between the end of each shaft and each lower leg bolt hole should be visible.
Position the fork at an angle with the bolt holes oriented upward.
Inject Maxima PLUSH Dynamic Suspension Lube Light into each lower leg through the bottom bolt holes.
Do not exceed the recommended oil volume per leg as this can damage the fork.
Fork | Damper Side (mL) | Spring Side (mL) |
|---|---|---|
Domain Gold RC | 15 | 15 |
Domain Gold R | 15 | 15 |
Psylo Gold RC | 10 | 10 |
Psylo Silver RC | 10 | 10 |
Psylo Silver R | 10 | 10 |
Slide the lower leg assembly toward the crown until it contacts the shaft ends.
The air spring shaft and damper shaft should be visible through the bottom bolt holes.
Verify each shaft end is centered and seated in the lower leg shaft/bottom bolt hole, and no gap is visible between the lower leg and each shaft end.
Align each shaft end into the bottom bolt holes if needed.
Remove the crush washer retainers and crush washers from each bottom bolt.
Hold the crush washer retainer with needle nose pliers and unthread it from the bolt by rotating the bolt counterclockwise. Discard the crush washer retainers and crush washers.
Clean the bolts.
Install a new crush washer retainer and crush washer onto each bolt.
Do not damage the bolt threads.
If removed from a bottom bolt, do not reuse crush washers or crush washer retainers. Damaged crush washers can cause oil to leak from the fork.
Crush washer retainers and crush washers not removed from bottom bolts can be reused if not damaged. Clean the crush washer and bottom bolt before installing the bottom bolt into the fork.
Install the solid bottom bolt into the spring side shaft.
Install the hollow bolt into the damper side shaft.
Tighten each bolt.
CRASH HAZARD
Parts must be tightened to the specified torque. Failure to do so can result in SERIOUS INJURY OR DEATH.
Retaining rings must be fully seated in the retaining ring groove. confirm the retaining ring is fully seated in the retaining ring groove after installation. Failure to do so can result in SERIOUS INJURY OR DEATH.
Do not use vinegar of any type to clean any part of a RockShox suspension product. Vinegar can cause permanent damage to parts which can, over time, result in product structural failure, SERIOUS INJURY OR DEATH.
Apply a small amount of grease to the end of the rebound adjuster rod.
Install the rebound adjuster knob onto the rebound damper bottom bolt.
Press the knob firmly onto the bolt until it clicks into place.
Refer to your pre-service recorded rebound setting to adjust the rebound damping.
Refer to your pre-service recorded settings, or use the air chart on the fork's lower leg, and pressurize the air spring.
You may see a drop in the indicated air pressure on the pump gauge while filling the air spring; this is normal. Continue to fill the air spring to the recommended air pressure.
Compressing the fork will equalize the positive and negative air chambers. After the fork is cycled 3-4 times, check the pressure and add air as needed.
Install the air valve cap.
Clean the entire fork.
This concludes the service of your RockShox suspension fork.