Pedal Power
So, you have been turned on to this e-bike thing – good for you! We are stoked to offer an eMTB Spider to run 104BCD rings on your e-bike. This spider is only compatible with the Bosch Gen 4 Performance Line CX and SX motors. Any Race Face 1x 104BCD ring will mount securely with the included hardware.
eMTB Spider – Bosch G4 104BCD
Specs
| Compatible With | 104 BCD 4 arm cranks |
| Material | Aluminum |
| Compatible With | Bosch Gen 4 & 5 Performance Line SX and CX motors (Gen 5 CX will need spacer installed for 55mm chainline) |
| eMTB Built | Built for compatibility constraints and increased loads/forces of full-power e-bikes. |
Frequently asked questions
Which Bosch motor systems is this spider compatible with?
The Race Face eMTB Spider is compatible with Bosch Gen 4 and Gen 5 Performance Line CX and SX motors.
- Performance: It is engineered from high-grade aluminum to handle the high torque of these e-bike systems.
- Chainline: It provides a 52mm chainline. Please note that if you are using it with a Gen 5 CX motor, an additional spacer is required to achieve the correct 55mm chainline.
- Versatility: This spider enables the use of standard 104 BCD 4-arm chainrings, making it an excellent choice for riders who want more flexibility in their drivetrain setup.
Is the spider durable for e-bikes?
Yes, the Race Face eMTB Spider is specifically engineered for exceptional durability to meet the rigorous demands and increased loads of electric mountain biking.
Key features ensuring its reliability include:
- Material: It is constructed from high-quality Aluminum, providing a robust yet lightweight foundation.
- eMTB Built: This component is explicitly designed to handle the increased loads and forces characteristic of full-power e-bikes.
- Compatibility: It is optimized for use with demanding setups, including the Bosch Gen 4 Performance Line CX and SX motors.
- Ride Style: It is suitable for intensive Cross Country, Trail, and general E-Bike applications.
Can I install this on my own?
Yes, the spider comes with all necessary mounting hardware. However, because it is a drivetrain component, some mechanical knowledge is required for installation. If you are unsure about the process, we recommend visiting a local dealer for professional assistance.
Does it come in different colors?
Currently, the eMTB Spider is available in Black only.
What is the chainline for this eMTB spider?
This Race Face eMTB Spider is precision-engineered to maintain a consistent 52mm chainline, which is designed to optimize shifting and drivetrain performance for compatible Bosch systems.
What chainring specification is compatible?
This spider is designed to allow the use of standard 104 BCD (Bolt Circle Diameter) chainrings on your Bosch Gen 4 motor. It is compatible with:
- 104 BCD 4-arm crank systems.
- Any Race Face 1x 104BCD chainring, including SHI-12 speed rings, supporting a 1x drivetrain configuration.
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