Prestacycle UniBlock Cassettes 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. They are designed to last longer than standard steel cassettes.
Easier to clean
Honeycomb design allows for maximum material removal while maintaining strength
Shifting ramps and profiled teeth provide smooth and consistent shifts
Single block design allows Prestacycle to remove more unnecessary material, making cassettes lightweight