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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.
- 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