RK Autowerks - S55 Billet Pinned Crank Hub for BMW M2C / M3 / M4

Description

• 4 pin design to ensure the hub wont spin, even with heavily modified S55s
• Laser scanned to ensure perfect fitment – direct replacement for stock
• Designed and machined in-house with our CNC mills
• Machined from heat treated 4130 Chromoly

Compatible with all S55 M models

• 2014-2018 BMW F80 M3
• 2014+ BMW F82 M4
• 2019+ BMW F87 M2 Competition & M2 CS