Full Speed Ahead W0138A00ZZE400 Bosch Gen 4 Boost Spider BCD104 53mm Chainline Boost Hubs BLK

Full Speed Ahead W0138A00ZZE400 Bosch Gen 4 Boost Spider BCD104 53mm Chainline for Boost Hubs Black. Engineered to withstand the beating that E-bikes often deliver this FSA alloy spider for eBike is meant to optimize the balance between weight stiffness and durability.