Classified cassettes are machined from one-piece steel, with a high durability coating to reduce wear. They're extremely light and designed to fit the unique driver interface of the Powershift hub.

• Designed specifically for the Powershift hub ONLY
• Machined from a single piece of high-grade chromoly-steel for increased durability and reduced weight
• 24 gears with small steps provides up to 451% of range for Ultimate Gear Coverage
• Cassette lock ring and radial shim included