ACS threaded freewheels that are focused on durability for standard thread applications. Features-Three-pawl design provides engagement every 12 degrees (30 steps total)-Removable with standard 4-prong tool-Nickel plated sprocket ring fits 1/8” and 3/32” chains-Cold forged for high-torque strength, and increased durability-Fits Standard 1.37" x 24tpi hub threads Item Specifications-Color:Silver-Weight:181.4-Cassette Body Type:Threaded Standard 1.37" x 24tpi-Freewheel Teeth:22-Chain Compatibility:3/32"