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XX DH Transmission
SRAMNEW€1399 MSRP

SRAM XX DH Transmission

Race-proven AXS performance for DH

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Specifications

Speed
7-speed
Derailleur
XX DH Full Mount AXS
Shifter
AXS Pod Ultimate
Crankset
XX DH Aluminum DUB
Crank Lengths
150mm, 155mm, 160mm, 165mm
Chainring
34T, 36T, 38T 104BCD T-Type
Cassette
XS-797 T-Type 10-24
Chain
XX Transmission Flattop
Gear Range
240%
Weight
Approx. 1700g
Features
Cassette Mapping, Full Mount, AXS wireless

Overview

The first-ever wireless AXS drivetrain built specifically for downhill racing. XX DH Transmission delivers full-power shifting under load via Cassette Mapping, a robust Full Mount hangerless derailleur, and a 7-speed 10-24T cassette with X-SYNC tooth profile optimized for DH gear steps. Raced to multiple UCI World Cup wins and a World Championship, it gives riders confidence-inspiring toughness and millisecond-level advantage from the start gate to the finish line.

Features

  • First-ever AXS wireless shifting for DH

  • Full-power shifting under load

  • Cassette Mapping for uninterrupted power

  • Full Mount hangerless derailleur interface

  • Backward rotation impact protection

  • Rebuildable skid plates and outer link

  • 7-speed 10-24T optimized DH gear steps

  • XD SLIM hub for tighter clearance

  • XX Flattop chain hollow-pin Hard Chrome

  • Type 4 Transmission damper for silence

  • Ochain 104BCD spider compatible

  • Silent and rattle-free under chaos

  • UCI World Cup and World Championship proven

  • Black ano with silver-machined finish

Guides for setup

All guides

Chain Maintenance

Essential tips for cleaning, lubrication, and extending component life.

Derailleur Indexing

Fine-tune cable tension, limit screws, and B-gap for crisp, accurate shifting under load.

Weather & Conditions Adaptation

Setup adjustments for wet, muddy, dry, and cold conditions — tires, suspension, drivetrain, and brakes.

How we evaluate this component

Product cards, analysis notes, and setup guidance are grounded in public specifications, market positioning, compatibility, and the most likely real-world use cases on trail.

Read the full methodology