This is a Wolf Tooth GCX XX1/X01 Replacement Cog.
- GCX sprocket replaces the worn out stock 42T on your XX1 or X01 cassette with same shifting performance
- Detailed step-by-step instructions are available at www.wolftoothcomponents.com
- Made in the USA from 7075-T6 aluminum alloy
Cassette Compatibility: SRAM GCX XX1/X01
This product was added to our catalog on June 30, 2020