RaceFace Bosch Gen4 104 BCD Spider - 4-Bolt 104 BCD Aluminum Black

The RaceFace Bosch Gen 4 spider allows the use of RaceFace 104 BCD rings on RaceFace ebike cranksets (52mm chainline).

This spider is only compatible with Bosch Gen 4 Performance Line CX motor

Any RaceFace 104 BCD chainring will mount securely with the included hardware including the RaceFace SHI-12 speed rings

Aluminum