S55 BILLET PINNED CRANK HUB

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
Machined by RK Autowerks
 
Compatible with all S55 M models
2014-2018 F80 M3
2014+ F82 M4
2019+ F87 M2 Competition & M2 CS
 we do not recommend the splined crank hub nor will we install them for liability purposes. this crank hub is 100% guaranteed 
s55 crankhub