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
• Chainring BCD: 104
• Color: Black
• Defined Color: Black
• Designed for ebike: Yes
• Direct Mount Type: Direct Mount Bosch Gen 4