General Safety
Safety First!
We care about YOU. Please, always wear your safety glasses and protective gloves when servicing Zipp products. Protect yourself! Wear your safety gear!
Safety First!
We care about YOU. Please, always wear your safety glasses and protective gloves when servicing Zipp products. Protect yourself! Wear your safety gear!
ROAD WHEELS
You must read and understand the Safety Instructions document included with your product before proceeding with the installation. Improperly installed components are extremely dangerous and could result in severe and/or fatal injuries. If you have any questions about the installation of these components, consult a qualified bicycle mechanic. This document is also available on www.sram.com.
1. Follow the safety instructions listed here. Any failure to follow these safety instructions could cause you to crash while riding your bicycle, which could result in serious and/or fatal injuries.
2. Have your wheels maintained by a qualified bicycle mechanic.
3. Before riding your bicycle confirm you are using the correctly sized wheels for your fork and bicycle. Confirm the wheels are properly installed and secured to the bicycle, and are used with compatible components. Your wheels are designed to secure to the bike using a quick release or thru axle. Be sure you understand which axle your bike has and how to properly operate it.
4. Ensure that your axle, dropouts, and thru axle or quick release mechanisms are clean and free of dirt or debris.
5. Apply the correct techniques when installing your wheels. Make sure four or more threads are engaged in the quick release adjusting nut when it is closed.
6. Do not modify Zipp wheels in any way.
7. Do not use Zipp wheels on any tandem bicycle.
8. Do not exceed the lower of the rim or tire maximum pressure rating. Find the rim pressure rating on the rim near the valve hole.
9. Zipp wheels do not come with the reflectors required by federal law for new bicycles, 16 CFR §1512.16. Additional requirements for reflectors and lighting may exist and vary by location. Your dealer should install proper reflectors and lighting systems to meet all applicable federal, state, and local requirements. Always use front and rear lights in addition to reflectors if riding at night or in reduced visibility.
10. Use only the brake pads included with your wheels or Zipp approved pads for your specific rims. For a list of Zipp approved pads, refer to www.sram.com\service. Use of improper or contaminated brake pads, or non-approved pads including non-Zipp carbon specific pads, will lead to excessively high braking temperatures which can cause premature rim wear and/or failure which can lead to serious injury and/or death. Cork compound brake pads are for use in dry conditions only.
11. Do not use ceramic specific pads on non-ceramic coated rims.
12. Do not re-use any brake pads on carbon rims that have been previously used on aluminum rims as abrasive material may be embedded in the pad.
13. For Aluminum rims: Check the rim wear indicator(s) located on each side of the rim before every ride. If any wear indicator is completely worn or missing, immediately discontinue use of the wheel. The wear indicator represents the minimum rim thickness allowable for safe operation of the wheel. Riding the wheel with less than the minimum allowable rim thickness can lead to structural failure of the rim and/or wheel.
14. Do not attempt to use any tubeless products (excluding tubular tires) with tube-type clincher or tubular wheels.
COIN BATTERIES
INGESTION HAZARD
This product contains a button cell or coin battery.
DEATH or serious injury can occur if ingested.
A swallowed button cell or coin battery can cause INTERNAL CHEMICAL BURNS in as little as TWO HOURS.
KEEP new and used batteries OUT OF REACH OF CHILDREN.
SEEK IMMEDIATE MEDICAL ATTENTION if a battery is suspected to be swallowed or inserted inside any part of the body.
NO OBVIOUS SYMPTOMS
Unfortunately, it is not obvious when a button or coin battery is stuck in a child's esophagus. There are no specific symptoms associated with this.
The child might:
Cough, gag or drool a lot
Appear to have an upset stomach or a virus
Be sick
Point to their throat or stomach
Have pain in their abdomen, chest, or throat
Be tired or lethargic
Be quieter or more clingy than usual or otherwise “not themselves”
Lose their appetite or have a reduced appetite, not want to eat solid food, or be unable to eat solid food
These sorts of symptoms vary or fluctuate, with the pain increasing and then subsiding. A specific symptom to button and coin battery ingestion is vomiting fresh (bright red) blood. If the child does this seek immediate medical help. The lack of clear symptoms is why it is important to be vigilant with “flat” or spare button or coin batteries in the home and the products that contain them.
BATTERY AND BATTERY CHARGER
Lithium ion batteries are hazardous. Any failure to follow these safety instructions could damage the battery or charger which could cause fire, chemical burns, electrolyte leaks, and/or could lead to serious and/or fatal injuries. If the battery explodes, immediately call the fire department, cautiously remove any other batteries if possible, evacuate all persons from immediate area of fire, and use cold water to put out the fire.
1. Use only the SRAM-supplied charger and cords. Use of other chargers and cords may cause the battery to overheat, catch fire, and/or explode. Do not force discharge, recharge, disassemble, heat above (manufacturer's specified temperature rating) or incinerate. Doing so may result in injury due to venting, leakage or explosion resulting in chemical burns.
2. Replace rechargeable batteries with genuine SRAM rechargeable batteries only. Non-rechargeable batteries are not to be recharged.
3. Replace batteries only with the type described in the user manual. Ensure the batteries are installed correctly according to polarity (+ and -). Do not mix old and new batteries, different brands or types of batteries, such as alkaline, carbon-zinc, or rechargeable batteries.
4. Remove and immediately recycle or dispose of used batteries according to local regulations and keep away from children. Do NOT dispose of batteries in household trash or incinerate. Remove and immediately recycle or dispose of batteries from equipment not used for an extended period of time according to local regulations.
5. Do not use the battery outside of the temperature range specified in the user manual; avoid exposure to excessive heat or cold. Do not leave the battery in direct sunlight or in a vehicle.
6. Do not place the battery or charger in or near fire or in a place where static electricity occurs.
7. Do not modify or disassemble the battery or charger. Avoid dropping your battery or charger. Do not use a battery or charger that has been dropped or is damaged. Signs of damage include: discoloration, dents, cracks, punctures, or leakage.
8. Do not charge the battery in a damp or wet location. Avoid exposure to moisture and/or water during charging. For parts with a plug, do not insert or remove the plug while it is wet; otherwise it may cause electric shock. Make sure the plug is dry before inserting it.
9. Do not leave the battery in a charger or on equipment if it generates an odor and/or heat, changes color and/or shape, leaks electrolyte, or causes any other abnormality. If you notice any abnormalities, immediately remove the battery from the charger or equipment.
10. Do not leave a charging battery unattended. Do not leave the battery connected to the charger after charging is complete. Store the battery at room temperature with the battery cover on, if provided.
11. Do not allow metal, such as paper clips, coins, or keys, to come into contact with the battery terminals. Metal can damage the battery terminals and cause the battery to short-circuit.
12. Always completely secure the battery compartment. If the battery compartment does not close securely, stop using the product, remove the batteries, and keep them away from children.
13. Replace coin cell batteries used in SRAM components with a CR2032 or CR1632 battery only as defined in the user manual or on the product. Batteries must be 3V only.
Keep new and used batteries out of reach of children at all times. Batteries can be a choking hazard, and if swallowed can cause internal chemical burns in as little as two hours and lead to death. If you think batteries might have been swallowed or placed inside any part of the body, seek immediate medical attention. Even used batteries may cause severe injury or death. Call a local poison control center for treatment information.
SKIN IRRITANT
Under extreme usage or temperature conditions, battery leakage may occur. Do not allow leaked electrolyte to come into contact with eyes or skin. Immediately wash the affected area with clean water and seek medical advice.
Click on the icon at the top right corner of the screen to display the color legend and the complete list of tools and supplies for this manual in a scrollable dropdown list.
The colors and symbols featured in this manual correspond to specific actions or procedures. A detailed description for each color and symbol is contained in the dropdown.
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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: WH-353-NSW-B1
WH = Product Type - Wheel
353 = Platform/Series
NSW = Model
B1 = Version - (B - Second 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.
Your product's appearance may vary from those pictured in this manual.
Images and examples pictured are for conceptual purposes and may vary from product design, appearance, and performance.
Consult sram.com/service whenever a separate manual is referenced in this document.
Read the full warranty policy for your components at sram.com/en/service/warranty.
For information about trademarks used in this manual, visit sram.com/website-terms-of-use.
Highly specialized tools and supplies are required for the replacement and maintenance of your Zipp components. We recommend that you have a qualified Zipp dealer work on your Zipp components.
For spoke lengths, tension, rim ERD, hub dimensions, and technical specifications, please refer the Zipp Wheel Specifications document available at www.sram.com/service.
Zipp road wheels comply with ASTM F2043-13 5.1.4, Condition 1. This is a set of conditions for the operation of a bicycle on a regular paved surface where the tires are intended to maintain ground contact.
Zipp 101 XPLR and 303 series wheels comply with ASTM F2043-13 5.1.4, Conditions 1 and 2. This is a set of conditions for the operation of a bicycle that includes Condition 1 as well as unpaved and gravel roads and trails with moderate grades. In this set of conditions, contact with irregular terrain and loss of tire contact with the ground may occur. Drops are intended to be limited to 15 cm (6") or less.
303 Firecrest, 303 S, 303 SW, and 303 XPLR SW have a maximum system weight limit of 286 lbs / 129 kg. All Zipp road wheels have a maximum system weight limit (Bike, Rider, and Equipment) of 253 lbs / 115 kg.
Zipp wheels are not intended for use on trainers or rollers that secure the bike by the front rim or tire while the rear of the bike remains unsecured.
Install the axle end caps onto the hub compatible with your frame and fork. Install the thru axle according to the axle manufacturer's instructions.
Install the following components, as compatible, onto your Zipp wheel according to the component manufacturer's instructions before installing the wheel onto the bicycle:
Cassette
Zipp rim strip, tube, and tire. Do not exceed the maximum air pressure printed on the rim or tire.
Zipp tubeless rim tape, Zipp valve stem, tubeless tire, and sealant. Do not exceed the maximum air pressure printed on the rim or tire.
Tubular tire
Disc brake rotor: 6-bolt or center locking
Identify a hookless (A) rim interface by a straight-edge rim profile. Identify a hooked (B) rim interface by a hooked rim profile.
For a hookless (A) rim interface, you must consult the Tire Pressure Guide at axs.sram.com/guides/tire/pressure for recommended front/rear air pressure based on tire width and rider weight to begin tuning optimum tire pressure.
Wheels with a hookless rim interface are compatible only with tubeless/tubeless-ready tires recommended for hookless rims by the tire manufacturer.
A tube may be used with a hookless rim compatible tubeless/tubeless-ready tire.
Follow the tire manufacturer's recommendations for installation.
Zipp tubeless-compatible wheels come prepared with rim tape. If the tape becomes damaged, consult the Zipp Tubeless Tape Installation Service Manual at sram.com/service.
Crash Hazard
Use only a Zipp tubeless air valve stem assembly with your Zipp tubeless-compatible wheel. Failure to use a Zipp tubeless air valve stem assembly can cause permanent damage to the rim which can lead to a crash and serious injury and/or death to the rider.
The tire installation section can be applied to all hookless Zipp wheels and tire combinations.
For 303 XPLR, this is the recommended procedure.
1. Remove the valve core using a valve core tool.
2. Place the tire around the wheel with both tire beads on the outside of the rim.
Do not damage the tubeless tape while using any tools to assist with tire installation. If the tubeless tape is damaged, refer to the ZIPP Wheels Tubeless Tape and Rim Strip Replacement Service Manual for replacement instructions www.sram.com/service.
3. Starting opposite of the valve stem, install one tire bead onto the wheel.
4. Push the tire beads into the center and lowest point of the rim to provide additional clearance to assist with installation when installing the tire bead.
5. Starting opposite the valve stem, install the second tire bead on the other side of the rim.
6. If needed, use a tire jack to install the last part of the tire.
7. Inflate the tire using a tubeless floor pump or air compressor to seat the tire beads into the rim. You may hear a popping sound as the tire bead engages with the rim. Remove the pump to install sealant. The wheel will deflate.
When using an air compressor to seat the tire, the air compressor pressure must not exceed the rim or tire max pressure ratings.
Min Tire Size (A) | Max PSI / bar | Max Tire Size (B) | Max PSI / bar | |
---|---|---|---|---|
101 XPLR | 35 mm | 58 PSI / 4 bar | 65 mm | 72 PSI / 5 bar |
303 S | 28 mm | 72 PSI / 5 bar | 50 mm | 43.5 PSI / 3 bar |
303 SW | 30 mm | 65 PSI / 4.5 bar | 44 mm | 51 PSI / 3.5 bar |
303 XPLR | 40 mm | 51 PSI / 3.5 bar | 60 mm | 36 PSI / 2.5 bar |
303 FC | 29 mm | 72 PSI / 5 bar | 50 mm | 43.5 PSI / 3 bar |
353 NSW | 30 mm | 65 PSI / 4.5 bar | 39 mm | 58 PSI / 4 bar |
404 FC | 28 mm | 72 PSI / 5 bar | 35 mm | 58 PSI / 4 bar |
454 NSW | 28 mm | 72 PSI / 5 bar | 35 mm | 58 PSI / 4 bar |
808 FC | 28 mm | 72 PSI / 5 bar | 32 mm | 65 PSI / 4.5 bar |
858 NSW | 28 mm | 72 PSI / 5 bar | 32 mm | 65 PSI / 4.5 bar |
Super 9 Road | 28 mm | 72 PSI / 5 bar | 32 mm | 65 PSI / 4.5 bar |
Refer to the chart to identify the maximum air pressure for approved tire and wheel combinations. Maximum air pressure varies depending on the minimum tire size (A) or maximum tire size (B) for a given wheel. Refer to www.sram.com/service for compatible tire information.
Refer to the Tire Pressure Guide at axs.sram.com/guides/tire/pressure for air pressure recommendations for your given setup, riding conditions, and rider weight.
You must know your wheel model, compatible tire size, and adhere to the maximum tire pressure listed in the chart. Failure to follow these specifications could result in a tire or wheel failure and a loss of control or a crash, leading to serious injury or death.
Use only Zipp disc brake-specific quick release axles with bicycles equipped with disc brakes. Failure to do so may result in detachment of the wheel which can lead to a crash and serious injury and/or death to the rider.
Zipp Hub | Axle Length Front (A) | Dropout Width Front (B) | OLD | Axle Length Rear (A) | Dropout Width Rear (B) | |
---|---|---|---|---|---|---|
Rim Brake | 146 mm | 112 mm | 130 mm | 178 mm | 144 mm | |
Disc Brake | 149 mm | 115 mm | 135 mm | 185.5 mm | 151.5 mm |
Quick release lever tension must be sufficient to properly seat and secure the wheel to the bicycle. If, after peforming the installation instructions that follow, the quick release lever is very difficult to close or excessive friction is felt when closing the lever, check the cam bushing and lever for damage. Any damage can result in insufficient quick release lever tension. Insufficient lever tension can cause the wheel to not seat or secure properly and make the wheel unsafe to ride; replace the quick release lever. Any wheel that is not properly seated or secured can disengage from the bicycle, which can lead to a crash and serious injury and/or death to the rider.
For complete Zipp hub end cap compatibility please refer to the Zipp End Cap Compatibility Chart at www.sram.com/service.
1. Remove the axle end caps with a non-marring tool, such as pliers with plastic jaws or a bench vise with aluminum soft jaws.
The use of metal tools can damage the end cap surface finish.
2. Install the end caps by pressing them onto each end of the axle by hand.
Cognition hubs: Apply Zipp Cognition or SRAM Butter grease to the inside of each end cap before installation.
ZR1 hubs: Apply Klüber Staburags NBU30 grease to the face of each bearing, and the sides and ends of the axles before installation.
Use only the brake pads included with your wheels, or Zipp approved brake pads for your specific rims. For a list of Zipp approved brake pads, consult www.sram.com/en/service/articles/zipp-approved-pads.
Use of colored brake pads can cause discoloration of the rim's braking surface, which is not covered under Warranty.
Only use carbon-compatible brake pads with carbon rims, and aluminum-compatible brake pads with aluminum rims.
Use of improper or contaminated brake pads, or non-approved pads including non-Zipp carbon specific pads, will lead to excessively high braking temperatures which can cause premature rim wear and/or failure which can lead to serious injury and/or death.
Cork compound brake pads are for use in dry conditions only and will experience reduced performance in wet conditions which can lead to crash or injury.
Inspect rim brake pads for wear every month.
When the grooves on your brake pads disappear, they are worn and need to be replaced with new brake pads.
Consult your rim brake caliper manufacturer's instructions for brake pad replacement.
Indications of Carbon Fiber Brake Track Wear
Inspect the rim brake track for wear before each ride. Do not use a carbon fiber rim that has a worn brake track. A worn brake track can cause the rim to fail which can lead to a crash and serious injury and/or death to the rider. If the outer woven carbon layer (A) of the rim brake track is worn down to expose parallel fibers (B), do not ride the wheel. Consult a Zipp retailer for further inspection.
Do not expose Zipp wheels or rims to hot vehicle exhaust or allow the rims to contact any vehicle exhaust components.
Zipp Road wheels are available with splined and XDR driver bodies, and are compatible with both road and MTB cassettes. Install the included 1.85 mm cassette spacer, if necessary, as indicated prior to the installation of the cassette. Refer to the XD, XDR, and Splined Cassettes User Manual for more information.
1. If using rim brakes, turn the brake quick release to the open position.
2. Install the front wheel into the dropouts. If your wheel and/or front tire has directional arrows, make sure the tire rotates in the proper direction.
3. Align the lever with the curved surface of the cam bushing.
Crash Hazard
Misalignment of the lever and cam bushing can cause damage to the parts and can result in insuffucient lever tension while the lever is closed. A damaged cam bushing or lever may require higher lever closing force which may result in insufficient wheel retention. Do not deviate from the installation procedure to reduce force required to close the lever as this will result in insufficient wheel retention.
4. Insert the quick release axle through the non-drive side of the hub. With the lever in line with the axle, push and hold the lever cam against the non-drive side dropout.
5. Thread the adjusting nut onto the axle by hand until it contacts the drive side dropout and the inside of the dropout contacts the hub. The adjusting nut must engage at least four threads on the axle.
6. Close the lever toward the rear of the bicycle, parallel to the ground.
7. To increase lever tension, open the lever and turn the adjusting nut clockwise by hand.
8. Close the lever to re-check lever tension. Lever tension is sufficient when the lever cannot be rotated while in the closed position. If the lever can be rotated while in the closed position, this is an indication that lever tension is insufficient and must be increased.
9. If using a wheel that is quipped with rim brakes, turn the brake quick release to the closed position.
10. The front wheel must be centered between the fork dropouts. If the wheel is not centered, open the quick release and make sure the wheel axle is fully seated in the fork.
11. Close the quick release.
12. If using a wheel that is quipped with rim brakes, center the brake pads so there is an equal distance between the pads and the rim. Inspect brake pad alignment and centering by closing and opening the pads with the brake lever. If the brake pads are not centered to the wheel, see your brake manufacturer's instructions. If the wheel fails to adequately center in the fork, you should consult your Zipp dealer or professional bicycle mechanic.
13. If using a wheel that is equipped with disc brakes, check that the rotor is centered in the caliper. If the rotor is not centered, consult your brake manufacturer's instructions.
1. Install the front wheel into the dropouts. If your wheel and/or front tire has directional arrows, make sure the tire rotates in the proper direction.
2. Slide the thru axle through the drop out and hub until it contacts the threads of the opposite side drop out.
3. Tighten the thru axle to the torque specified by the axle manufacturer.
4. If using a wheel that is equipped with disc brakes, check that the rotor is centered in the caliper. If the rotor is not centered, consult your brake manufacturer's instructions.
1. If using a bike that is equipped with rim brakes, turn the brake quick release to the open position.
2. Pull back and down on the rear derailleur and hold it in place as you install the wheel.
3. Install the wheel into the dropouts so that the chain wraps around the smallest cog of the cassette.
4. Make sure the wheel is fully seated into the dropouts.
5. If using a wheel that is equipped with a quick release axle, align the lever with the curved surface of the cam bushing.
Crash Hazard
Misalignment of the lever and cam bushing can cause damage to the parts and can result in insuffucient lever tension while the lever is closed. A damaged cam bushing or lever may require higher lever closing force which may result in insufficient wheel retention. Do not deviate from the installation procedure to reduce force required to close the lever as this will result in insufficient wheel retention.
6. Insert the quick release axle through the non-drive side of the hub. With the lever in line with the axle, push and hold the lever cam against the non-drive side dropout.
7. Thread the adjusting nut onto the axle by hand until it contacts the drive side dropout and the inside of the dropout contacts the hub.
The adjusting nut must engage at least four threads on the axle.
8. Close the lever forward between the seat stay and chain stay.
If the lever can be rotated while in the closed position, this is an indication that lever tension is insufficient and must be increased.
9. To increase lever tension, open the lever and turn the adjusting nut clockwise by hand.
10. Close the lever to re-check lever tension. Lever tension is sufficient when the lever cannot be rotated while in the closed position.
11. If you are using a bike that is equipped with rim brakes, turn the brake quick release to the closed position.
12. The rear wheel must be centered between the frame dropouts. If the wheel is not centered, open the quick release and make sure the wheel axle is fully seated in the frame.
13. Close the quick release.
14. Center the brake pads so there is an equal distance between the pads and the rim. Inspect brake pad alignment and centering by closing and opening the pads with the brake lever. If the brake pads are not centered to the wheel, see your brake manufacturer's instructions. If the wheel fails to adequately center in the frame, you should consult your Zipp dealer or professional bicycle mechanic.
15. If using a wheel that is equipped with disc brakes, check that the rotor is centered in the caliper. If the rotor is not centered, consult your brake manufacturer's instructions.
1. Pull back and down on the rear derailleur and hold it in place as you install the wheel.
2. Install the wheel into the dropouts so that the chain wraps around the smallest cog of the cassette.
3. Make sure the wheel is fully seated into the dropouts.
4. Slide the thru axle through the drop out and hub until it contacts the threads of the opposite side drop out.
5. Tighten the thru axle to the torque specified by the axle manufacturer.
6. Check that the disc brake rotor is centered in the caliper. If the rotor is not centered, consult your brake manufacturer's instructions.
ONLY use mild soap and water to clean your wheels.
Transport wheels in a wheel bag for protection.
Do not set objects on wheels.
Every Ride
Check that the wheel is properly seated and the quick release/axle is secure.
Check tire condition and pressure.
Check rims and spokes for damage.
Check that hubs spin freely without play.
Check that wheels are centered.
Every 100 hours
Clean the quick release and apply a thin film of water-resistant grease between the quick release lever and cam washer.
Perform front and rear hub maintenance.
Replace tubeless rim tape (if applicable).
Rim tape needs to be removed to service the wheel or spokes. For additional service information, please visit sram.com/service.
Refer to your hub's service manual for specific service intervals and procedures.
Do not use pressurized water for cleaning.
ONLY use mild soap and water to clean your wheels. Use of chemical cleaners can cause degradation of the Zipp ImPress graphics.
Do not remove the tire with any metal tool.
Do not use any tools to tighten the quick release nut. Hand tighten only.
Use of colored standard brake pads can cause discoloration of the rim's braking surface, which is not covered under warranty.
Do not store Zipp carbon fiber wheels near swimming pool chemicals.
Failure to follow these instructions voids SRAM warranty.
♻For recycling and environmental compliance information, please visit www.sram.com/en/company/about/environmental-policy-and-recycling
Replace the Zipp AXS Sensor battery with a CR2032 coin cell battery only.
Never dispose of batteries in a fire.