PF30-386L shallow insert for long-spindle 30mm cranks BOTTOM BRACKETS these pulleys will fit on:

these pulleys will fit on:

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PF30-386L shallow insert for long-spindle 30mm cranks BOTTOM BRACKETS these pulleys will fit on:This bottom bracket features a shallower insert compared to our regular PF30 386, which makes it perfect for metal frames with internal wires or carbon frames with a reduced contact area in the bottom bracket shell. It will fit most 30mm crank spindles on a PF30 frame. It moves the bearings out of the frame in order to make a wider and stiffer set up. Bearing wear is greatly reduced with this wider set up compared to a standard PF30 setup with