- Fits the SL-190 and SL-197 fat bike hub
- Fits most popular Shimano HG style mountain bike cassettes
- Will not fit a thread on freewheel
- Accepts common HG splined Shimano style mountain bike cassettes (Does not fit any cassette with a 10t small cog) Will fit 8-speed, 9-speed, 10-speed, 11-speed, and 12-speed MTB cassette if starts with 11t or 12t and are not road cassettes