Road AXS and XPLR AXS

Safety First!

We care about YOU. Please, always wear your safety glasses and protective gloves when servicing SRAM products. Protect yourself! Wear your safety gear!

HYDRAULIC DISC BRAKES

COIN BATTERIES

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

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.

Use the dropdown lists in the SELECT FILTERS: window at the top left of the page to select the preferred language, product model code, and instructional content. Product instructional content filters will vary.

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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: RD-RED-E-E1

RD = Product Type - Rear Derailleur

RED = Platform/Series - RED

E1 = Version - (E - Fifth 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.

Download the SRAM AXS app, available for free in the app stores, to create your SRAM account, add your components, and customize your SRAM AXS experience.

Through the app, you will also be able to:

• Connect your components via Bluetooth to the SRAM AXS app.

• Build and personalize multiple bicycle profiles.

• Monitor bicycle performance and readiness.

• Customize component behavior to match your riding style.

• Assign custom actions to your controls.

For component customization within the SRAM AXS app, all AXS components must be paired into a single system. Procedures for pairing multiple systems, such as an AXS seatpost and AXS drivetrain, can be found in the System Pairing section.

For optimal system performance and compatibility make sure you have installed the latest version of the SRAM AXS app and component firmware. Firmware updates are performed through the app.

Highly specialized tools and supplies are required for the replacement and maintenance of your SRAM components. We recommend that you have a qualified SRAM dealer work on your SRAM components.

1. Remove the battery cover from the battery.

2. Install the battery into the charger. The LED on the charger will turn yellow while charging, and turn green when the battery is fully charged.

3. Press down on the release button.

4. Remove the battery from the charger.

Consult the SRAM Battery and Charger User Manual user manual for charging instructions, battery maintenance, and travel guidelines.

Storage conditions: Temperature from -40°C to 70°C, humidity from 10% to 85%

Operating conditions: Temperature from -10°C to 40°C, humidity from 0% to 100%

Service life: 5 years

1. Open the battery latch.

2. Remove the battery block.

3. Insert the fully charged SRAM battery into the derailleur.

4. Close the battery latch.

SRAM batteries install into the front and rear derailleurs the same way and can be used interchangeably. When installed correctly, the latch will snap into place.

The AXS button has different functions that vary from component to component. Use the table below to help differentiate between the functions. Descriptions of each function can be found in their respective sections.

* = Enable component discoverability in SRAM AXS app

Each AXS system has a primary component that begins and ends the pairing session. Each SRAM AXS component must be paired with the rear derailleur, the primary component. Pairing allows each component to communicate when a shift command is transmitted.

Additional AXS systems can be combined to create one AXS system. To combine AXS systems, begin pairing with any one of the primary components.

1. Rear Derailleur: Begin the pairing session at the rear derailleur. Press and hold the AXS button until the green LED blinks slowly, then release.

The pairing session will time out after 30 seconds of inactivity.

Steps 2-4 can be done in any order.

The LED on the rear derailleur and the component being paired will blink quickly when the component is successfully paired.

2. Front Derailleur: Press and hold the AXS button on the front derailleur until the green LED blinks quickly, then release.

3-4. Press and hold the AXS button on one shifter until the green LED blinks quickly, then release. Repeat on the other shifter.

If a Reverb AXS XPLR or a SRAM Power Meter is included, refer to those sections below prior to completing the next step.

5. Press and release the AXS button on the rear derailleur to end the pairing session, or wait 30 seconds for the pairing session to time out. The green LED will stop blinking.

The pairing process does not need to be repeated when batteries are removed and/or replaced.

The pairing process must be repeated if any components are replaced, added, or removed.

Refer to sram.com for additional power meter information.

Spider-based Power Meter crankset: Does not include an AXS button and must be paired into a system with the SRAM AXS app.

DUB-PWR Spindle Power Meter crankset with AXS button: To pair the DUB-PWR Power Meter into the system you must remove the DUB-PWR sled to press the AXS button. Proceed to the steps below.

1a. Push the slide lock in toward the LED.

1b. Rotate the Battery Sled cap clockwise

1c. Remove the Battery Sled.

1d. Press and hold the AXS button on the Battery Sled until the AXS LED blinks quickly, then release.

If the Battery Sled installation takes too long, pairing can time out and will need to be restarted. Install the Battery Sled after pairing is complete. Proceed to System Pairing, step 5, to complete pairing. After step 5, return to step 1e and install the Battery Sled.

1e. Align the groove on the Battery Sled with the slot in the crank spindle and install the Battery Sled.

1f. Push the Battery Sled in and rotate the cap counter-clockwise until it stops. The slide lock will release and lock the Battery Sled into the crank spindle.

1. Press and hold the AXS button on the seatpost until the AXS LED blinks quickly, then release.

Proceed to System Pairing, Step 5, to complete pairing.

Verify the system is paired by shifting the derailleurs in both directions. The shifter LED will blink when a command has been sent, and the derailleur LEDs will blink when a command has been received and executed. If the derailleurs do not respond, repeat the pairing process.

1. Press the left shifter paddle to move the rear derailleur inboard to a larger cog. Press and hold the paddle for multiple shifts.

2. Press the right shifter paddle to move the rear derailleur outboard to a smaller cog. Press and hold the paddle for multiple shifts.

3. Press both shifter paddles simultaneously to move the front derailleur inboard or outboard.

Use the SRAM AXS app to personalize your system's shift logic.

Press and release the AXS button on the rear derailleur once to move the derailleur outboard one position, or double-press to move inboard one position.

Press and release the AXS button on the front derailleur to move the derailleur either inboard or outboard.

Press the Bonus Button, located at the top inboard-side of the shifters, to move the rear derailleur. The default shift logic matches the shifter paddles.

Use the SRAM AXS app to modify the Bonus Buttons shift logic or provide ANT+ device control.

The shifter AXS button can be used to enable and disable Enhanced Shifting mode for the system once it has been activated in the SRAM AXS app. Use the SRAM AXS app to personalize your system's shift logic.

Enhanced shifting mode will return to its default 'off' setting if the system is re-paired.

Enable Enhanced Shifting mode by pressing and releasing the right AXS button.

Disable Enhanced Shifting mode by pressing and releasing the left AXS button.

1. Clean the driver body and apply grease to the driver body threads.

2. Install the cassette onto the driver body until it is fully seated and the splines are engaged. Use a tool with a guide pin to tighten the cassette while applying inward pressure to the cassette.

3. Use a torque wrench to tighten the cassette.

¹ If riding styles conflict, it is up to the user to size up or size down based on necessary braking power.

² Road, Gravel, Cyclocross -- Consult the fork or frame manufacturer’s specifications before installing a 140 mm or 180 mm rotor. These rotor sizes have compatibility limitations on many forks and frames.

³ E-bikes -- Consult the appropriate riding style column and select rotor size based on system weight.

1. Install the rotor, tapered side first, onto the hub splines.

2. Install the Zipp center locking mechanism over the disc rotor and thread it into the hub.

3. Tighten to the torque specified by the locking mechanism's manufacturer. If using a Zipp or SRAM lockring, tighten the lockring to 40 N·m (354 in-lb). Do not exceed 40 N·m (354 in-lb).

1. Align the rotor with the laser-etched markings facing away from the hub and install new, threadlock-prepped rotor bolts.

2. Tighten the rotor bolts one turn in an alternating sequence.

1. Apply grease to the thru axle threads before axle installation.

2. Install the thru axle and wheel according to the manufacturer's instructions.

3. Tighten the thru axle into the dropouts according to the manufacturer's instructions.

XPLR AXS Wheel Change

After installation and setup, you may remove and reinstall the rear wheel as needed. To remove and install the wheel, put the derailleur in Open Mode. Before tightening the rear axle bolt, you must release the Cage Mode button and set the derailleur to Ride Mode.

For fork and frame specifications that require a bolt-on bracket, install the bracket in the orientation for your caliper configuration.

1. Remove the pad spacer from the caliper.

2. Consult the SRAM MTB and Road Disc Brake Caliper Mounting Specification document to determine the caliper mounting requirements for your fork, frame, and rotor dimensions.

For fork and frame specifications that require a bolt-on bracket, install the bracket onto the brake caliper in the recommended orientation.

3. Tighten the bolts.

Caliper installation, centering, and torque is the same for all flat and post mount calipers, with or without a bracket, post, or spacer.

1. Loosely install the caliper onto the fork or frame.

2-3. Lightly squeeze (approx. 4 lbs./2 kg) the lever blade repeatedly to advance the caliper pistons to the rotor, then hold the lever blade and lightly tighten the bolts.

4. Check that the brake pads are equally spaced on either side of the rotor.

5-6. Lightly squeeze (approx. 4 lbs) and hold the brake lever, and then tighten the bolts to the torque specified.

If the brake pads rub on the rotor, loosen the caliper bolts and adjust the caliper position. Repeat steps 2-6.

All new brake pads and rotors should be put through a wear-in process called 'bed-in'. The bed-in procedure, which should be performed prior to your first ride, ensures the most consistent and powerful braking feel along with the quietest braking in most riding conditions. The bed-in process heats up the brake pads and rotors, which deposits an even layer of brake pad material (transfer layer) to the braking surface of the rotor. This transfer layer optimizes braking performance. To watch a video of the bed-in procedure, visit: SRAM: Disc Brake Bed-In Procedure.

1. Accelerate the bike to a moderate speed, then firmly apply the brakes until you are at walking speed. Repeat approximately twenty times.

2. Accelerate the bike to a faster speed, then very firmly apply the brakes until you are at walking speed. Repeat approximately ten times.

3. Allow the brakes to cool prior to any additional riding.

4. After the bed-in procedure has been performed, the caliper may need to be re-centered.

Spray isopropyl alcohol on the bottom bracket shell and clean it. The shell should be free of dirt, paint, grease, and metal burrs. For best results, have your frame faced by a professional bicycle mechanic.

1. Apply grease to the inside of the frame shell.

2. Prepare the bottom bracket for installation. Remove the left side cup from the center tube. Remove the left side outer spacer, if applicable. Remove the right side outer spacer from the right side cup.

1. Install the inner non-drive side spacer if indicated by the chart.

2. Use a 12-notch external bottom bracket tool to tighten the non-drive side cup into the frame.

3. Install the left external spacer as indicated by the spacer chart.

4. Install the inner drive side spacer if indicated by the chart.

5. Use a 12-notch external bottom bracket tool to tighten the drive side cup into the frame.

6. Install the right external spacer as indicated by the spacer chart.

DUB BSA Spacer Chart

1. Use a bottom bracket bearing press tool or a headset press to install the left side cup into the non-drive side of the frame according to the tool manufacturer's instructions.

2. Repeat the installation with the right side cup and center tube into the drive side of the frame.

3-4. Install the spacer(s) according to the Crankset and Bottom Bracket table.

DUB PressFit 30 Spacer Chart

DUB BB30 Spacer Chart

DUB PressFit Spacer Chart

The LED illuminates when a shift is performed. The color of the LED indicates the ride time remaining. Consult the SRAM Battery and Charger User Manual for charging instructions.

The LED on the rear derailleur will blink red and green when a shift has been rejected. Shifts can be rejected when attempting to enter a locked out chainring/cog combination, or when a shift has been requested when the temperature is below -15 °C.

1. Fold the hood cover forward.

2. Use a coin to rotate the battery cover 90° counter-clockwise until it stops.

3. Remove the battery cover and battery.

4. Insert a new CR2032 battery with the positive + sign facing into the cover.

5. Make sure the o-ring on the battery cover is installed correctly in the groove, then insert the battery and battery cover into the hood.

6. Use a coin to rotate the battery cover 90° clockwise until it stops.

7. Roll the hood cover back down.

If your brakes exhibit excessive lever throw or spongy feel, perform the following steps before bleeding the system:

1. Clamp the bicycle into a bicycle work stand.

2. Remove the wheel from the affected caliper.

3. Remove the brake pads. Measure the brake pads for wear. If the pads measure less than the minimum thickness, replace the pads.

4. Re-install the pad retainer bolt.

5a. For road brakes: Install the Piston Massage Spacer or the thicker side of the appropriate pad spacer through the caliper between all pistons.

5b. For MTB brakes: Install the Piston Massage Spacer or two 1.85 mm thick rotors through the caliper between all pistons.

6. Squeeze the brake lever several times until the pistons have advanced and contact the spacing device being used. One piston may move faster than the other; that is okay. Continue to squeeze the lever until the pistons touch the spacer.

7. Remove the Piston Massage Spacer, pad spacer, or two 1.85 mm thick rotors.

8. Use a plastic tire lever to push the pistons back into the caliper bores.

9. Repeat steps 5-8 until the pistons move freely.

10. Remove the spacer and pad retainer bolt from the caliper and reinstall the brake pads.

11. Install the thinner side of a pad spacer between the brake pads.

12. Squeeze the brake lever lightly 5 times (approximately 4 lbs.) until the pads contact the spacer. Remove the spacer.

13. Install the wheel.

14. Loosen the caliper mounting bolts.

15. Lightly squeeze (approximately 4 lbs.) the brake lever several times to position the brake pads to the proper distance from the rotor.

16. Center the caliper on the rotor, and tighten the caliper mounting bolts to the torque specified in the appropriate user manual.

17. Spin the wheel and check the brake function. The pistons should move freely and there should not be excessive brake lever throw.

If the brake lever was squeezed without a pad spacer or rotor installed in the caliper, the pad gap may have been reduced. If this happens the rotor might not have enough clearance in the caliper to rotate without rubbing. Perform this procedure to reset the pad gap:

1. Remove the wheel from the affected caliper.

2. Install the thicker side of a pad spacer between the brake pads.

3. Squeeze the brake lever hard 5 times (approximately 22 lbs/10 kg).

4. Remove the spacer from the caliper, and install the thinner side of a pad spacer between the brake pads.

5. Squeeze the brake lever lightly 5 times (approximately 4 lbs or less).

6. Remove the pad spacer.

7. Re-install the wheel, and re-center the caliper.

1. Push the slide lock in toward the LED.

2. Rotate the Battery Sled cap clockwise.

3. Remove the Battery Sled.

4. Remove the AAA Lithium battery.

5. Install a new AAA Lithium battery in the correct orientation.

6. Align the groove on the Battery Sled with the slot in the crank spindle and install the Battery Sled.

7. Push the Battery Sled in and rotate the cap counterclockwise until it stops. The slide lock will release and lock the Battery Sled into the crank spindle.

It is recommended that you periodically clean your electronic components.

Use a damp cloth to wipe off any dirt and debris. Clean the components with soap and water only. Rinse thoroughly with water and allow the components to dry.

Inspect the crankset and bottom bracket for play, and tighten as needed. Clean the crankset and bottom bracket with water and mild soap.

Replace the bottom bracket when it no longer rotates smoothly.

Consult the Chainrings and Spiders User Manual on www.sram.com for complete torque specifications.

1. Use an 8 mm hex wrench to loosen the crankarm bolt.

2. Remove the drive side crankarm.

3. Use a rubber or plastic mallet to lightly tap the spindle from the drive side.

4. Remove the crankarm.

5. Loosen the bolt until the preload adjuster will rotate. Do not exceed a 1 mm gap.

6. Rotate the preload adjuster in the opposite direction of the adjuster arrow until it stops or makes contact with the crankarm.

Replace your chain at 0.8% elongation to maintain performance and limit wear to the cassette and chainring.

Always maintaining a clean and lubricated drivetrain will help extend your system performance and product component service life significantly.

It is recommended that you clean your chain, cassette, and chainring after frequent use, and immediately after riding in muddy, dusty, or other adverse conditions.

Use only biodegradable non-acidic cleaners to clean the cassette, chainring, and chain. Rinse thoroughly with water and wipe dry with a rag or blow dry with pressurized air.

Lubricate the chain with a dedicated chain lubricant. Wipe off excess lube.

Clean the cassette with biodegradable cleaners only. Rinse thoroughly with water and allow the parts to dry, then lubricate the chain with chain lubricant. Lubricate regularly to extend the chain's service life.

Storage conditions: Temperature from -40°C  to 70°C ( -40°F to 158°F), humidity from 10% to 85%

Operating conditions: Temperature from -10°C to 40°C (14°F to 104°F), humidity from 0% to 100%

Component Service life: 5 years

Remove the SRAM batteries to preserve battery life during long term storage and when the bicycle is transported. Store the battery at least at 50% charge.

SRAM chains and cassettes are 100% recyclable metal.

♻ For recycling and environmental compliance, please visit sram.com/en/company/about/environmental-policy-and-recycling

♻ For recycling and environmental compliance, please visit sram.com/en/company/about/environmental-policy-and-recycling

Consult your E-Bike Manufacturer for compact and full-size battery recycling information.

Replace the SRAM battery with an authentic SRAM battery only.

Replace the AXS Controller battery with a CR2032 coin cell battery only.

Replace the SRAM power meter battery with a CR2032 coin cell battery only.

Replace the Pedal Sensor battery with a AAA Lithium/Iron Disulfide (Li/FeS2) battery only.

Replace the SRAM or Quarq power meter Battery Sled battery with a AAA Lithium battery only.

Consult the SRAM Battery and Charger User Manual for battery maintenance and specifications.