- 4 pin design to ensure the hub wont spin, even with heavily modified S55s
- Direct replacement for stock
- Designed and machined in-house on HAAS 4-axis CNC mill
- Machined from heat treated 4130 Chromoly
- BMW NEW Crank Bolt
Compatible with all S55 M models
- 2014-2018 F80 M3
- 2014+ F82 M4
- 2019+ F87 M2 Competition & M2 CS