XX DH Transmission Welcome Guide

Welcome to XX DH Transmission

Purpose-built and race-proven—with two World Cup wins and a World Championship title even before its public release—XX DH brings all the benefits of Transmission to gravity riding. Built around Full Mount technology, XX DH Transmission delivers full-power shifting under load, unrivaled toughness, and silence, so you can focus on what's ahead.

Before you hit the track, read on to get to know the basics of XX DH Transmission (then go shave some time off your lap).

Still need to install your XX DH Transmission? Installation is easy.

Step 1: Batteries are easy

Step 3: Pairing is painless

Pairing introduces your AXS components to each other with a wireless handshake, so they form a secure and seamless group. If your system is set up and shifting well, it’s already paired.

Setup checkpoint

Make sure all your AXS components are paired by checking that they show up under your bike profile in the app, or by using your controllers to actuate each AXS component. If any component is missing, repeat the pairing process.

Step 5: Chain length calculator

Transmission derailleurs feature no adjustment screws. Instead, the system relies on a few simple specifics to get the perfect setup. Your bike model and chainring size combination have a defined chain length, as well as a specified setup cog that must be used.

Should you change your chainring size or adjust your bike’s geometry with a flip-chip, you must verify your new settings in the chain length & setup key, adjust as necessary, and reperform the derailleur setup process.

You can calculate these specifications using the Chain Length & Setup Key Calculator, which has a database of all bike models that are compatible with Transmission.

CALCULATE NOW

Categorization process

If your bike isn’t listed in the guide or app above, if your bike has a chain guide-mounted lower idler pulley, or if it has an adjustable idler pulley that is not in the specified or default position, you’ll need to follow the Categorization process to determine the chain length and Setup Cog for your frame.

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