SRAM SPMB2 Eagle AXS Transmission User Manual
- June 16, 2024
- SRAM
Table of Contents
- SPMB2 Eagle AXS Transmission
- Tools and Supplies
- SRAM AXS App
- e-MTB/Pedelec Shifting and Multi-shift
- SRAM AXS Controller
- Eagle AXS Transmission
- SRAM Battery
- System Pairing
- AXS Button Functions
- Shifting
- Pod Controller Installation
- Cassette Installation
- Crankset Installation
- Chain and Setup Key Guide
- UDH Removal
- Eagle Transmission Setup
- SAG Category Bicycles
- **Derailleur Trimming
- Battery Overview
- Maintenance
- Recycling
- References
- Read User Manual Online (PDF format)
- Download This Manual (PDF format)
Eagle AXS Transmission
USER
MANUAL
SPMB2 Eagle AXS Transmission
SAFETY INSTRUCTIONS
You must read and understand the Safety Instructions document included with
your product before proceeding with 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.
The bicycle frame must be compatible with the UDH hanger assembly. The thru
axle and wheel must be compatible with the bicycle frame and UDH hanger
assembly. Apply grease only to the thru axle threads. Do not apply grease to
the UDH hanger or bolt.
NOTICE
This manual is a complete system installation guide, from unboxing each
component to heading out for a ride. Complete the installation and setup in
the order described in the manual. Do not begin a new section before
completing the previous sections.
AXS components are only compatible with other AXS components. Consult the
Compatibility Map AXS Components for compatibility information.
Consult www.sram.com/service whenever a
separate manual is referenced in this document. DRAFT
Tools and Supplies
Highly specialized tools and supplies are required for the installation of your SRAM components. We recommend that you have a qualified bicycle mechanic install your SRAM components.
SRAM AXS App
After your SRAM AXS components have been paired and installed on your bicycle, download the SRAM AXS app, available for free in the app stores. Use the app to create your account, add your components, and customize your SRAM AXS experience. For component customization within the SRAM AXS app, all SRAM AXS and RockShox AXS components installed on a single bicycle must be paired together to create one system. For multi-system pairing, refer to System Pairing. Through the app, you will be able to:
- Change settings for your components
- Receive notifications for new product features and firmware updates
- Access product data and recommended service intervals
e-MTB/Pedelec Shifting and Multi-shift
NOTICE
SRAM components are designed for use only on bicycles that are pedal powered
or pedal assisted (e-MTB/Pedelec).
SRAM Eagle AXS systems have multishift functionality disabled by default. To
protect the components from damage and preserve the warranty, an Eagle Chain,
Cassette, and AXS Rear Derailleur must be used with the SRAM AXS Controller’s
Multi-shift disabled when used on e-MTB/ Pedelec style bicycles.
To enable the Multi-shift function, navigate to the system’s Drivetrain
Settings within the SRAM AXS app.
The complete SRAM Warranty is available at
www.sram.com.
SRAM AXS Controller
a. Left MatchMaker X (MMX) Bridge
b. Right MatchMaker X (MMX) Bridge
c. Left and Right Infinity Clamp
d. Controller Buttons
e. AXS Button (Pairing)
f. LED Indicator
g. Battery Cover
Eagle AXS Transmission
Derailleur
UPDATE EXPLODED VIEW
SRAM Battery
NOTICE
Hands and gloves must be clean before handling the SRAM battery. Contact with
sunscreen or hydrocarbon cleaners may cause the battery to crack.
Battery Charging
Remove the battery cover from the battery, and charge the battery.
Consult the SRAM Battery and Charger user manual for charging instructions,
battery maintenance, and traveling guidelines.
NOTICE
Do not discard the battery cover. To protect the battery terminals, install
the battery cover on the battery when it is not on the charger or derailleur.
| Remove/Loosen
---|---
| Install
| Adjust
NOTICE
Do not discard the derailleur battery block (A) or the battery cover (B). To
prevent battery depletion during transportation, remove the battery and
install the derailleur battery blocks and battery covers. Failure to cover the
battery and derailleur terminals could result in damage to the terminals.
| Remove/Loosen
---|---
| Adjust
Insert the fully charged battery into the derailleur and close the battery latch. When installed correctly, the latch will snap into place.
| Remove/Loosen
---|---
| Install
| Adjust
System Pairing
Each AXS system has a master component that begins and ends the pairing
session.
A SRAM AXS System Controller must be paired with the Eagle AXS Transmission
rear derailleur master component. Pairing allows the controller to communicate
when a shift command is transmitted. Up to two SRAM AXS System Controllers and
two Wireless
Blips can be paired into the system.
Additional AXS systems can be combined to create one AXS system. To combine
AXS systems, begin pairing and end pairing with any one AXS master component
(Reverb XS or SRAM AXS 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.
For bicycle setups using two AXS pod controllers, pair the right controller first. Press and hold the AXS button on the controller until the green LED blinks quickly, then release.
| Press and hold
---|---
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.
Press & release
AXS Button Functions
The AXS button has different functions that vary from component to component. Descriptions of each function can be found in their respective sections.
Shifting
Use the SRAM AXS App to personalize your system’s logic.
To move the derailleur inboard to a larger cog, press the controller paddle downward. Press and hold the paddle for multiple shifts.
To move the derailleur outboard to a smaller cog, press the controller paddle upward, or press down on the forward paddle. Press and hold the paddle for multiple shifts.
| Adjust
---|---
AXS Button Shifting
Press and release the AXS button on the rear derailleur once to move the derailleur outboard one position, or twice quickly to move inboard one position.
| Press & release
---|---
| Double press
Pod Controller Installation
Infinity Clamp
Position the clamp in the left handlebar position (1a) or the right handlebar position (1b) before proceeding. Install the first paired controller on the right side (1b).
|
---|---
|
Install the pod controller with the pointed tip aligned with the open slot in the clamp. Loosely install the bolt in the clamp.
| Adjust
---|---
| Remove/Loosen
| Install
⚠WARNING – CRASH HAZARD
Make sure the pod contoller does not obstruct the brake lever throw.
| Friction Paste
---|---
| Install
| Adjust
| Torque
MMX Bridge
Install the left bridge (1a) for the left handlebar position (1a) or the right bridge (1b) for the right handlebar position. Install the first paired controller on the right side (1b).
Install the pod controller with the pointed tip aligned with the open slot in the clamp. Loosely install the bolt in the clamp.
| Adjust
---|---
| Remove/Loosen
| Install
| Friction Paste
---|---
| Install
| Torque
⚠WARNING – CRASH HAZARD
Make sure the pod contoller does not obstruct the brake lever throw.
| Adjust
---|---
| Torque
Cassette Installation
Remove the thru axle and wheel according to the manufacturer’s instructions.
| Remove/Loosen
---|---
SRAM XD
NOTICE
Use a tool with a guide pin to prevent damage to the components.
Cassette lockring tool splines must fully engage the cassette lockring or
locktube (XD). Splines must be between 7 and 8 mm in length for XD cassettes.
If there is lateral play or movement in the cassette after tightening it,
contact your SRAM dealer.
SRAM XD cassettes are compatible with the SRAM XD driver body and with the XDR
driver body using a 1.85 mm spacer.
Install the cassette onto the driver body until it is fully seated with the
splines engaged, then tighten the cassette.
NOTICE
Grease is critical to prevent the cassette from seizing onto the driver body.
Make sure the hub driver body and cassette interface are free of dirt and
debris.
| InstalarGrease
---|---
| Install
| Torque
Crankset Installation
Consult the SRAM DUB MTB and Road Cranksets and Bottom Brackets user manual at www.sram.com/service for crankset and bottom bracket installation before proceeding.
| Install
---|---
Chain and Setup Key Guide
It is recommended to size your chain and determine the Setup Key position
before proceding to the Eagle Transmission Setup. Use the SRAM AXS App Chain
and Setup Key Guide to calculate the recommended chain length and Rear
Derailleur Setup Key position for your bicycle. If your bicycle model is not
in the database, you will need to find or measure the chainstay length of your
bicycle. Use a chain breaker tool to break the chain at the inner link.
⚠WARNING – CRASH HAZARD
Failure to size or connect the chain properly may lead to chain failure or
cause the rider to crash, resulting in serious injury and/or death. (old
language) Failure to follow setup recommendations could result in damage to
your rear derailleur and/or bicycle frame. (app language)
UDH Removal
The UDH must be removed from the frame before derailleur installation.
Turn the UDH bolt clockwise to remove it from the hanger threads. Remove the
frame-specific UDH washer.
NOTICE
The UDH bolt is left-hand threaded. To loosen the bolt, turn clockwise.
Turn the UDH bolt clockwise to remove it from the hanger threads. Remove the
frame-specific UDH washer.
| Remove/Loosen
---|---
Rotate the UDH hanger backward to unseat the hanger from the pocket.
| Adjust
---|---
| Remove/Loosen
Eagle Transmission Setup
1a. Press the AXS button to shift the rear derailleur into the outboard
position. 1b. Put the rear derailleur cage in the lock position.
2a. Install the frame bushing into the hangerless interface.
2b. There may be a washer between the frame on bikes with pivots concentric to
the axle (or split pivot bike?- need help with wording).
| Adjust
---|---
| Install
3a. Install the derailleur with the (full mount or sandwich interface) sliding
over the hangerless interface.
3b. Install and tighten the mounting bolt clockwise to snug.
3c. Loosen the mounting bolt counterclockwise one full turn.
| Install
---|---
| Remove/Loosen
4a. Apply grease to the thru axle threads before axle installation.
4b. Install the thru axle and wheel according to the manufacturer’s
instructions, and tighten handtight (4c).
4d. Loosen the thru axle bolt counterclockwise one full turn.
| Grease
---|---
| Install
| Remove/Loosen
5a. Press the AXS controller button to shift the rear derailleur into the
Setup Cog, gear 7.
5b. Remove the rear derailleur Setup Key.
Place the rear derailleur Setup Key in the correct position for your bicycle
as determined in the Chain and Setup Key Guide in the SRAM AXS app: Position 1
// SAG (5c) or Position 2 (5d).
| Adjust
---|---
6a. Route the sized Eagle T-Type chain through the derailleur pulleys with the flat edge of the chain facing away from the cassette. Make sure to route the chain below the tab in the cage.
| Adjust
---|---
| Install
6b. Pull each end of the chain together and install the PowerLock.
6c. Press the PowerLock connector links together.
NOTICE
The arrow must point in the direction of chain travel before locking the
PowerLock into place. Once locked, the PowerLock cannot be disconnected.
| Adjust
---|---
| Install
6d. Rotate the crank until the PowerLock is above the chainstay.
| Adjust
---|---
| Install
Check that the two halves of the PowerLock are properly aligned.
6e. Apply the rear brake and firmly push the crank arm down to lock the
PowerLock. You should hear and feel the PowerLock click into place.
6f. Check the PowerLock by hand to make sure it moves freely.
⚠CAUTION
The PowerLock is designed for one-time use only. The PowerLock can only be
removed with master link pliers and must not be reused. Install a new
PowerLock each time a new chain is installed.
| Adjust
---|---
| Install
SAG Category Bicycles
NOTICE
For SAG Category bicycles, the chain tension step must be performed with the
rear shock in sag position. Compress the rear suspension to sag before
tensioning the chain. Failure to follow this could result in damage to your
derailleur and/or frame.
| Adjust
---|---
7a. With the derailleur in the Setup Cog, tension the chain by pulling
straight back on the lower portion of the derailleur cage.
7b. Tighten the B-bolt while applying tension to the chain.
| Adjust
---|---
| Torque
Tighten the rear axle to torque according to the frame manufacturer’s instructions. Release the upper pulley wheel.
| Torque
---|---
9a. Rotate the cranks slowly and press downward on the AXS Controller paddle
and shift the derailleur all the way inboard.
9b. Continue to rotate the cranks and press upward on the paddle and shift the
derailleur all the way outboard.
The rear derailleur Cage Lock will automatically release during the outboard
shifting.
| Adjust
---|---
**Derailleur Trimming
**
SRAM AXS derailleurs can be trimmed to align the pulley wheels of the
derailleur to the cassette cogs.
Trim your derailleur manually inboard or outboard below or use the AutoTrim
feature in the SRAM AXS App to let the derailleur find its optimal position.
Manual Trim
Battery Overview
Battery Charge LED Indicator
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 derailleur will blink red and green when a shift has been
rejected. Shifts can be rejected when the temperature is below -15 °C.
| 3-12 months
---|---
| 1-3 months
| <1 month
| 5-25 hours
---|---
| 1.5-5 hours
| < 1.5 hours
| Rejected Shift
Controller Battery Replacement
Make sure the controller is clean before opening the battery latch. Use a damp
cloth to wipe off any dirt and debris from the control. Clean the components
with soap and water only. Rinse thoroughly with water and allow the parts to
dry completely before opening.
⚠WARNING
Consult the battery manufacturer for safe handling instructions. Keep the
battery out of reach of children. Do not put the battery in your mouth. If
ingested, seek medical attention immediately. Do not use sharp objects to
remove batteries.
Turn the battery cover counter-clockwise to open and remove the cover.
Remove the battery.
NOTICE
To prevent moisture damage do not remove the battery cover o-ring seal.
| Adjust
---|---
| Remove/Loosen
| |
---|---|---
Reinstall the battery cover. Turn the cover clockwise to lock it into place.
| Adjust
---|---
| Install
Maintenance
We recommend that you periodically clean your electrical 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 parts to dry, then
lubricate the chain.
NOTICE
Remove the SRAM derailleur battery and install the derailleur battery block
before cleaning.
Do not clean the components with a power washer. Do not use acidic or grease-
dissolving agents on your electrical components. Do not soak or store your
electrical components in any cleaning product or liquid. Chemical cleaners and
solvents can damage plastic components.
Storage and Transportation
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
NOTICE
Check the battery level of each component before and after each use.
Remove the SRAM battery from the derailleur and install the derailleur battery
block when the bicycle is being transported or not in use for long periods of
time. Failure to remove the battery could result in unintentional actuation
and/or battery depletion. Failure to cover the battery terminals could result
in damage to the battery.
Chain Replacement
Use a Pedro’s Chain Checker Plus, Pedro’s Chain Checker Plus II, or a Park
Tool CC-4 tool to measure chain wear and replace the chain when it reaches
0.8% elongation.
Recycling
** For recycling and environmental compliance, please visit
https://www.sram.com/en/company/about/environmental-policy-and-
recycling.
Replace the derailleur battery with an authentic SRAM replacement battery
only. Replace the SRAM AXS Controller battery with a CR2032 coin cell battery
only.
Consult the SRAM Battery and Charger manual for battery maintenance and
specifications.
⚠WARNING**
Never dispose of batteries in a fire.
These are registered trademarks of SRAM, LLC:
1:1®, Accuwatt®, Avid®, AXS®, Bar®, Blackbox®, BoXXer®, DoubleTap®, Elita®,
eTap®, Firecrest®, Firex®, Grip Shift®, GXP®, Hammerschmidt®, Holzfeller®,
Hussefelt®, i-Motion®, Judy®, Know Your Powers®, NSW®, Omnium®, Pike®,
PowerCal®, PowerLock®, PowerTap®, Qollector®, Quarq®, RacerMate®, Reba®, Rock
Shox®, Ruktion®, Service Course®, ShockWiz®, SID®, Single Digit®, Speed Dial®,
Speed Weaponry®, Spinscan®, SRAM®, SRAM APEX®, SRAM EAGLE®, SRAM FORCE®, SRAM
RED®, SRAM RIVAL®, SRAM VIA®, Stylo®, Torpedo®, Truvativ®, TyreWiz®,
Varicrank®, Velotron®, X0®, X01®, X-SYNC®, XX1®, Zed tech®, Zipp® DRAFT
These are registered logos of SRAM, LLC:
These are trademarks of SRAM, LLC:
10K™, 1X™, 202™, 30™, 35™, 302™, 303™, 404™, 454™, 808™, 858™, 3ZERO MOTO™ ,
ABLC™, AeroGlide™, AeroBalance™, AeroLink™, Airea™, Air Guides™, AKA™,
AL-7050-TV™, Automatic Drive™, Automatix™, AxCad™, Axial Clutch™, BB5™, BB7™,
BB30™, Bleeding Edge™, Blipbox™, BlipClamp™, BlipGrip™, Blips™, Bluto™,
Bottomless Tokens™, Cage Lock™, Carbon Bridge™, Centera™, Charger 2™,
Charger™, Charger Race Day™, Clickbox Technology™, Clics™, Code™, Cognition™,
Connectamajig™, Counter Measure™, DD3™, DD3 Pulse™, DebonAir™, Deluxe™,
Deluxe Re:Aktiv™, Descendant™, DFour™, DFour91™, Dig Valve™, DirectLink™,
Direct Route™, DOT 5.1™, Double Decker™, Double Time™, Dual Flow
Adjust™, Dual Position Air™, DUB™, DZero™, E300™, E400™, Eagle™,
E-Connect4™, E-matic™, ErgoBlade™, ErgoDynamics™, ESP™, EX1™, Exact
Actuation™, Exogram™, Flow Link™, FR-5™, Full Pin™, Gnar Dog™, Guide™, GX™,
Hard Chrome™, Hexfin™, HollowPin™, Howitzer™, HRD™, Hybrid Drive™,
Hyperfoil™, i-3™, Impress™, Jaws ™, Jet™, Kage™, Komfy™, Level™, Lyrik™,
MatchMaker™, Maxle™, Maxle 360™, Maxle DH™, Maxle Lite™, Maxle Lite DH™,
Maxle Stealth™, Maxle Ultimate™, Micro Gear System™, Mini Block™, Mini
Cluster™, Monarch™, Monarch Plus™, Motion Control™, Motion Control DNA™,
MRX™, Noir™, NX™, OCT™, OmniCal™, OneLoc™, Paragon™, PC-1031™, PC-1110 ™,
PC-1170™, PG-1130™, PG-1050™, PG-1170™, Piggyback™, Poploc™, Power Balance™,
Power Bulge™, PowerChain™, PowerDomeX™, Powered by SRAM™, PowerGlide™,
PowerLink™, Power Pack™, Power Spline™, Predictive Steering™, Pressfit™,
Pressfit 30™, Prime™, Qalvin™, R2C™, RAIL™, Rapid Recovery™, Re:Aktiv
ThruShaft™, Recon™, Reverb™, Revelation™, Riken™, Rise™, ROAM™, Roller
Bearing Clutch™, RS-1™, Sag Gradients™, Sawtooth™, SCT – Smart
Coasterbrake Technology, Seeker™, Sektor™, SHIFT™, ShiftGuide™, Shorty™,
Showstopper™, SIDLuxe™, Side Swap™, Signal Gear Technology™, SL™, SL-70™,
SL-70 Aero™, SL-70 Ergo™, SL-80™, Sl-88™, SLC2™, SL SPEED™, SL Sprint™, Smart
Connect™, Solo Air™, Solo Spoke™, SpeedBall™, Speed Metal™, SRAM APEX 1™,
SRAM Force 1™, SRAM RIVAL 1™, S-series™, Stealth-a-majig ™, StealthRing™,
Super-9™, Supercork™, Super Deluxe™, Super Deluxe Coil™, SwingLink™,
TaperCore™, Timing Port Closure™, Tool-free Reach Adjust™, Top Loading
Pads™, Torque Caps™, TRX™, Turnkey™, TwistLoc™, VCLC™, Vivid™, Vivid Air™,
Vuka Aero™, Vuka Alumina™, Vuka Bull™, Vuka Clip™, Vuka Fit™, Wide
Angle™, WiFLi™, X1™, X5™, X7™, X9™, X-Actuation™, XC™, X-Dome™, XD™, XD Driver
Body™, XDR™, XG-1150™, XG-1175™, XG-1180™, XG-1190™, X-Glide™, X-GlideR™,
X-Horizon™, XLoc Sprint™, XX™, Yari™, ZEB™, Zero Loss™
Specifications and colors subject to change without prior notice.
© 2021 SRAM, LLC
This publication includes trademarks and registered trademarks of the
following companies:
Park Tool® is a registered trademark of Park Tool Co.
Pedro’s® is a registered trademark of Pedro’s Inc.
TORX® is a registered trademark of Acument Intellectual Properties, LLC
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---|---|---
References
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>