ACS threaded freewheels that are focused on durability for metric thread applications. Removable with Crossfire 6-spline tool. Three-pawl design provides engagement every 12 degrees (30 steps total). Nickel plated sprocket ring fits 1/8” and 3/32” chains. Fits metric M30 x 1mm hub threads. Cold forged for high-torque strength, and increased durability. Item Specifications: Color: Sliver, Weight: 113.4, Cassette Body Type: Threaded Metric 30 x 1mm, Freewheel Teeth: 13, Chain Compatibility: 3/32", keyword search: Crossfire,