PAWS 4.1 Freewheel Vendor_Smith Optics SRAM and Campagnolo Ultra Narrow

SRAM and Campagnolo Ultra Narrow 10-Speed * S9/C10 is compatible with Shimano 9 speed and Campagnolo C10 10-Speed

Brake Lever Actuation: Hydraulic

Prevents stiction and viscosity breakdown

Bearings: Enduro ZER Ceramic

Bamboo Base Board and Bamboo Box required for installation

PAWS 4.1 Freewheel Vendor_Smith Optics SRAM and Campagnolo Ultra NarrowACS threaded freewheels that are focused on durability for standard thread applications. Nickel plated sprocket ring fits 1 8 and 3 32 chains Cold forged for high torque strength, and increased durability Three pawl design provides engagement every 12 degrees (30 steps total) Fits Standard 1. 37" x 24tpi hub threads Removable with standard 4 prong tool