Description
RACE FACE Bosch G4 Cinch Spider – 104 BCD
Unlock the full potential and customize the gearing of your high-performance e-bike with the RACE FACE Bosch G4 Cinch Spider. This precision-engineered component is the ultimate solution for riders looking to upgrade their drivetrain and mount a standard 104 BCD chainring to their Race Face e-bike crankset. Specifically designed for the powerful Bosch Performance Line CX (Generation 4) motor, this spider seamlessly integrates into your setup, offering unparalleled versatility and performance for demanding MTB cycling.
As one of the most crucial bike parts for drivetrain customization, this spider allows you to break free from proprietary chainring mounts. It opens up a world of choice, enabling you to use any of Race Face´s renowned 1x 104 BCD rings, including the latest SHI-12 speed rings designed for flawless performance with Shimano 12-speed systems. Whether you´re looking to fine-tune your gear ratio for steep climbs, fast descents, or all-around trail riding, this adapter gives you the freedom to build the perfect setup for your needs.
Engineered with a perfect 52mm chainline, this spider ensures optimal drivetrain alignment for modern Boost frames. This precise chainline is critical for smooth, quiet shifting, reduced wear on your chain and cassette, and efficient power transfer from your pedals and the Bosch motor to the rear wheel. Built with the legendary durability Race Face is known for, this adapter is crafted from high-strength aluminum to withstand the increased torque and rigors of aggressive e-MTB riding. It´s not just a part; it´s a performance upgrade that enhances the reliability and capability of your entire crank system. Part of the versatile Race Face Cinch system, these spiders guarantee a secure and solid interface between your crank arm and your chosen chainring.
Features:
Pedal Power:
So you have been turned on to this ebike thing – good for you! We are stoked to offer a Cinch eMTB Spider to run Race Face 104BCD rings on your RF ebike crankset (52mm chainline). This spider is only compatible with the Bosch Performance Line CX (aka-Gen4) motor. Any RF 1x 104BCD ring will mount securely with the included hardware – including our new SHI-12 speed rings.
Main Benefits:
* Ultimate Drivetrain Customization: Converts your direct-mount e-crank to the universal 104 BCD 4-bolt standard, giving you access to a massive range of chainring options.
* Optimized Performance: Engineered with a 52mm chainline for perfect compatibility with Boost-spaced frames, ensuring crisp shifting and drivetrain efficiency.
* Bosch G4 Specific: Designed exclusively for seamless integration with Bosch Performance Line CX (Gen 4) drive units.
* Robust & Reliable: Constructed from durable aluminum to handle the high-torque demands of e-MTB cycling, delivering long-lasting performance you can trust.
* Cinch System Integration: Part of the proven Race Face Cinch ecosystem, providing a stiff and secure connection for confident power transfer.
Technical Specifications:
* Brand: RACE FACE
* Product Type: Spiders
* Motor Compatibility: Bosch Performance Line CX (Gen4)
* Crank Compatibility: Race Face Cinch System Cranks
* Chainring Compatibility: 104 BCD; 4-Arm Cranks and Chainrings
* Chainline: 52mm (Boost)
* Material: Aluminum






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