Prestacycle UniBlock PRO Cassette (10 Speed) (Campagnolo)

— COMPATIBILITY — GEARS: 10 Speed SHIFTING: Campagnolo 10 ONLY FREEHUB: Campagnolo 9-12 speed(also N3W freehub with Campagnolo brand adapter) — PERFORMANCE — Maximum Life Ultra-Light Easier to Clean Same Great Shifting Chromoly steel Red alloy locknut included Features Prestacycle Uniblock Cassettes Prestacycle UniBlock Cassettes are a single-piece unit machined from a solid block of cold-forged Chrome Molybdenum alloy steel, then heat-treated, tumble-finished and electroplated for added durability and low-friction operation. ChroMoly alloyed steel is significantly stronger than materials used in other Cassettes including top-end OEM Cassettes.   UniBlock will last longer than standard steel cassettes.  The single block design offers 3D structure to optimize strength and distribute forces.  This allows Prestacycle to remove more unnecessary material, making our cassettes lighter than even top Manufacturer models that use fast-wearing aluminum big cogs. Better Engagement, Smooth