VTT S55 Splinelock Crank Hub Solution - BMW F8X M2C/M3/M4
VTT is proud to introduce the only complete S55 crank hub solution that eliminates the need for drilling into your crank. Their proprietary Splinelock technology uses precision-machined, high-tolerance splines that press directly into the crank, creating a positive lock that keeps your hub securely in place without any permanent modifications.