The Ochain E Active E-Bike Spider – Shimano EP8 is designed to bring a smoother, more natural pedaling feel to e-MTB riders who demand refined performance from their drivetrains. By allowing controlled rotation between the crank and chainring, it helps isolate the rider from pedal kickback and improves suspension response on rough terrain.
This updated version features improved durability and precision construction, making it a reliable upgrade for aggressive trail and enduro e-bike riders using the Shimano EP8 system. The result is a ride that feels more controlled, balanced, and connected to the trail—especially when the terrain gets technical.
9 degrees of rotation reduces pedal feedback and the harsh effects of chain growth for a smoother, chainless-like pedaling feel
Improved suspension performance by minimizing drivetrain interference on rough or technical ground
Durable, updated construction built to handle the torque and demands of e-MTB riding
104 BCD chainring compatibility fits 32–36t rings for broad gear range flexibility
Shimano EP8 fit engineered specifically for EP8 crank systems for seamless integration
Chainring bolts are sold separately.
Specifications & Identifiers
Chainring BCD
104mm
Black - One Size UPC
739988404028
Black - One Size EAN
0739988404028
Black - One Size MPN
ENSH52
Silver - One Size UPC
739988404035
Silver - One Size EAN
0739988404035
Silver - One Size MPN
EPSH52
Tree Fort ID:
333222475451
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