OChain Active Spider E Bosch Direct Mount 104 BCD 55mm Chainline - Black

Ochain E is the E-MTB spider damper with internally adjustable travel, made for the Bosch BDU38 (CX Gen 5) motor.

Designed for everything from aggressive enduro to all-day trail, Ochain E lets the chainring rotate backward, decoupling you from pedal feedback forces. You get a quieter bike with less chain turbulence and noise, more stability while braking and cornering, and more control on rough terrain. It runs 9° of travel from the factory, and the aftermarket 12° travel chip lets you tune it to your terrain, riding and bike.

Because Ochain is mounted at the motor, those degrees aren't multiplied by the gear jumps of a wide-range cassette, so performance stays consistent. SRAM has re-engineered it for impact resistance, with enhanced sealing for better contamination resistance.

FEATURES

• Lets the chainring rotate backward to reduce pedal feedback and chain noise
• Internal travel chip: 9° from the factory, with an aftermarket 12° chip available
• Upgrade to Ochain S with the Ochain External Travel Adjust Upgrade Kit
• Made for the Bosch BDU38 (CX Gen 5), with a 55mm chainline
• Takes a 104 BCD chainring only; chainring and chainring hardware not included
• Re-engineered impact, longevity and contamination resistance
• Service: elastomer replacement at 100 hours, full service at 200 hours
• Weight: 145g (spider)