Prestacycle UniBlock PRO Cassette - 12-Speed Shimano, For HG 12 Freehub, 11-32, Silver

Prestacycle UniBlock Cassettes are a single-piece unit exquisitely 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. The 2 largest cogs on the 11-40 and 11-42 HG11 cassettes are crafted with one-piece of high quality 7075 aluminum. For Shimano 12-Speed Drivetrains (NOT compatible with SRAM Road AXS or Campagnolo 12-Speed Systems) ARC™ Maximum Performance 12 Speed Shifting Red aluminum locknut included (For HG11 and HG12 freehub only) Use on HG10 freehub requires Prestacycle HG10 lockring (Sold Separately) Single block design allows Prestacycle to remove more unnecessary material, making cassettes lightweight and easier to clean Shifting ramps and profiled teeth provide smooth and consistent shifts Honeycomb design allows for maximum material removal while maintaining strength Designed to last longer than standard steel cassettes