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The BOSCH Gen4 chainring spider (or chainring support) is an essential component designed specifically for fourth-generation (Gen4) Bosch Performance Line CX motors. This part ensures a reliable and secure connection between the chainring and the motor axle of your electric bike (e-MTB or e-bike).
Key Features: Exclusive Gen4 Compatibility: Designed with the specific interface (direct mount) required by Bosch Performance Line CX motors (from 2020 onwards) and other Gen4 models. It ensures a perfect fit and optimal power transfer from the motor to the drivetrain.
Direct Mount: It allows the mounting of chainrings with the Direct Mount standard or can be used to accommodate a standard BCD (Bolt Circle Diameter) chainring (e.g., a 104 mm BCD) if the desired chainring is not available in Direct Mount.
Material: Typically made of forged or CNC-machined aluminum to guarantee maximum rigidity and durability under the high stresses generated by electric assist systems.
Design: Its design is optimized to minimize weight while maintaining the essential strength required for aggressive use on an electric mountain bike.
This contact is responsible for product safety compliance. For help with an order or return, please contact customer service
Laurent Cornec
Laurent Cornec Race Face
4 rue Condorcet 83310 Cogolin
laurent.c@tribesportgroup.com
This contact is responsible for product safety compliance. For help with an order or return, please contact customer service
Laurent Cornec
Laurent Cornec Race Face
4 rue Condorcet 83310 Cogolin
laurent.c@tribesportgroup.com
