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Welcome to Eagle Mechanical Transmission

Eagle Mechanical Transmission is simple to use and simple to set up, with no derailleur hanger or adjustment screws—just flawless shifting. In this guide, you'll get to know your new Transmission, starting with the ride basics.

Still need to install your Transmission? Installation is easy.

 

Register your derailleur | Customize your cockpit | Wheel removal and installation | T-Type | Bash ring customization

Register your derailleur

Register your SRAM Eagle Transmission rear derailleur to receive tips to personalize, maintain, and service your Transmission. Plus, you can easily store your proof of purchase upon registration. Need help finding your serial number? Check under the A-B Setup Key, or the Component Serial Number Locator for help.

Scan QR Code

Serial number locator

Product Registration

Login to register

Right serial, wrong product? Contact us

CHAIN LENGTH & SETUP KEY CALCULATOR

Eagle Transmission derailleurs have no adjustment screws—just a few simple steps for a perfect setup. Every bike model and chainring size combination requires a defined chain length, Setup Key position, and Setup Cog. Find these specifications for your bike in the Chain Length Guide, a database of all Eagle Transmission-compatible models, Found below and in the SRAM AXS app.

Proper setup is essential to extending the lifetime of your Eagle Transmission, so even if you purchased your bike from a shop or straight from the factory, we recommend checking your setup before you ride.

TECH TIP: If you change your chainring size or adjust your bike's geometry with a flip-chip, you'll need to verify your new settings in the Chain Length Guide. If any settings change, complete the derailleur setup procedure again.

CALCULATE NOW

Customize your cockpit


Brake lever adjustment

Braking is a one-finger job, designed with your index finger in mind. Adjust the lever so that it's within reach of your index finger, moving the clamp along the bar to make it easy to engage. Want to adjust your SRAM brake lever position? Learn more here.


Slide your shifters

Reaching to shift? Move the shifter clamp toward the grips to find a comfortable spot for you. Shifters in your way? Move them away from the grips to find a spot within reach without interfering.

Tech tip: For proper shift under load, eMTBs must use the Single-Click shifters. All other bikes can use either the Single-Click or Double-Click shifters.

SRAM Eagle 90 Mechanical Transmission Shifter

Mounting options

Close to the perfect fit but need slightly more adjustment? Let's explore the mounting options that are available to you.

SRAM MatchMaker X Clamps

MatchMaker X

The MatchMaker X clamp (MMX) helps keep your cockpit organized by using a single clamp to mount both the brake lever and trigger shifter. Once you've set your ideal brake position, you can adjust the shifter knuckle mount to find your perfect fit. For example, you can leave the right knuckle on the right shifter, or move the left knuckle to the right so it sits further inboard along the bar. MMX clamps come standard on Eagle 90 and some Eagle 70 setups.

SRAM Integrated Clamps

Integrated clamps

Integrated clamps give you freedom to move your trigger shifter independently when paired with SRAM DB6 and DB4 brakes. For shifters secured with integrated clamps and paired with MMX-mounted brakes, the integrated clamp should be mounted outboard of the MMX clamp. Integrated clamps come standard on Eagle 70.

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Tech tip: Keep your cables neat and organized with the included cable clip. Attach the cable clip one side at a time, and voilà! Clean, tidy lines.

Wheel removal and installation

Rear wheel removal and installation is still fast and simple, whether you’re swapping a wheel mid-race or preparing your bike for transport.  This process is the same regardless of whether you have an AXS or mechanical Transmission.

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T-Type

Across all Eagle Transmission components, you’ll notice the T-Type designation. If it’s marked T-Type, it’s compatible with all other Eagle Transmission T-Type parts. Keep it T-Type, and the freedom to mix and match remains.

Browse T-Type Components

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Bash guard customization

Bash Guards are optional add-ons to protect your chainring teeth from damage during impact. Install or swap the Bash Guard to the underside of the chainring with your dominant foot forward, or install a bash guard on both sides of the chainring for dual-sided protection.

View manual

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Clean is fast, and lasts

To maximize drivetrain lifespan and ensure the quietest performance—especially on E-MTBs—we recommend cleaning and lubricating Eagle Transmission after every muddy, dusty, and creek-crossing kinda ride. A regularly cleaned and lubricated drivetrain can significantly outlast an unmaintained one, as dirt and grime trapped on a dirty drivetrain will accelerate wear and cause noise.

CLEAING GUIDE

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Tips for the trail

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Troubleshooting

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FAQ

FAQ

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Talk with an expert

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Service Hub

SERVICE HUB

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