Praxis M30 386 EVO Bottom Bracket for installing a Praxis M30 Road crank into a 386EVO Road frames.Praxis M30 386 EVO Bottom Bracket FeaturesFor Praxis M30 spindle based cranks only. NOT for other 30mm cranksUsed only for frames that are 386EVO ROADSteel Bearings 30mm Drive bearing /28mm NonDrive bearing86EVO Road = 86.5mm width X 46mm diameterVerve InfoCrank M30: This specific Infocrank M30 cannot install with this specific M30-386EVO BB due to Infocrank interface shape.