Sram are never shy of change, always innovating and are more often than not moving the game forward. Sram X01 DH is our Dirt 100 choice for a downhill specific drivetrain. and no suprise its the choice of the pro riders too including World Cup champion Aaron Gwin and his works Demo 8.
A set-up used by countless professionals on a daily basis, this seven speed drivetrain uses the tech Sram have developed from their single ring transmissions and rolled it out in X01 DH.
“The XO DH transmission is a set up used by countless professionals on a daily basis and is our benchmark in downhill gearing”
This drivetrain is focused around the compact Mini Block cassette with a 10-24T compact spread of cogs,s giving you bang on ratios for your downhill riding and reliable shifts under load. The rear mech has Sram’s roller bearing clutch and along with the twelve tooth pulleys tracks the cassette closely and helps reduce chain slap. Two lengths of cage are available, accommodating most frame designs, even those with longer than normal chain growth; a great touch. Paired up with the quick firing shifter and the Hard Chrome chain results in superb shifting in all conditions, rarely, if ever, missing a beat. The carbon DH cranks are a realistically light in weight, adding around 100g over the standard X01, and have reinforced alloy pedal interfaces.