PFBB30 Press Fit Bottom Bracket with Outboard Ceramic Bearings ACER Sport HCCA Ultralite 75mm is the overall length

75mm is the overall length and the shaft length is 52mm (length under the base of the cone until the end of the threads) for the standard length assuming you are using original wheels and have not added spacers

5x11x4mm Ball Bearing

The bulletproof Torque-Control slipper clutch and metal gear Magnum transmission are ready to handle any power system upgrade including the Extreme Power of the Brushless Power System

The same super hard balls that gave us the reputation as "the hardest balls in the industry

Here's what's included:

PFBB30 Press Fit Bottom Bracket with Outboard Ceramic Bearings ACER Sport HCCA Ultralite 75mm is the overall lengthPFBB30 Bottom Bracket with our legendary Ceramic Nitride Pro Series Bearings with outboard bearings for pressfit bottom bracket shells 46x68 73mm and 30mm cranksets.