Ochain

S Active E-Bike Spider - Bosch 52mm

The Ochain S Active E-Bike Spider - Bosch 52mm brings advanced drivetrain control to Bosch-powered e-MTBs, improving traction, comfort, and suspension performance. By allowing controlled rotation at the spider, it minimizes the harsh feedback and pedal kickback caused by chain growth, creating a smoother, more natural ride feel that mimics riding without a chain.

Designed for compatibility and easy tuning, this spider features an external adjuster for quick changes to the degree of rotation, so riders can fine-tune their setup to match terrain and riding style. Built for use with 104 BCD chainrings (32–36t), it integrates seamlessly into a variety of e-MTB drivetrains.

• Adjustable rotation system external dial lets riders fine-tune the degree of spider rotation for tailored suspension and pedal feel
• Reduced pedal feedback rotation at the spider absorbs chain growth, improving comfort and traction
• Enhanced suspension performance minimizes drivetrain interference for smoother suspension movement
• 104 BCD compatibility fits standard 32–36t chainrings for versatile setup options
• Chainring bolts sold separately for custom hardware selection