FSA Spider for Bosch Gen3/Yamaha E-Bike, Black

The FSA Spider E-bike spider is a chainring mount for e-bikes with a Bosch Gen3 motor, for riders who want to install a single-speed chainring. Use it to replace a worn spider or change the chainring.

• Lightweight: weighs just 54 - 56 g, helping reduce drivetrain weight
• Durable: forged 6061 aluminum, suitable for the torque of an electric motor
• Compatible with Bosch Gen3, Active Line, Performance Line and Smart System
• Single-speed chainring with a 104 mm BCD, for chainrings with the same dimensions
• Choose the chainline: 50 mm with a 142 mm hub, 53 mm with a 148 mm Boost hub

Technical specifications

• Material: Forged 6061 aluminum
• Weight: 54 - 56 g
• Chainline: 50 mm for 142 mm rear hubs; 53 mm for 148 mm Boost hubs
• BCD: 104 mm
• Compatibility: E-bikes with a Bosch Gen3 motor
• Bosch systems: Active Line 2018-2023; Active Line Plus 2018-2023; Active Line (Plus) from 2024 Smart System; Performance Line 2018-2023; Performance Line 2023-2025 Smart System
• Number of speeds: 1
• Finish: Black anodized, shot-peened