Sick of your cranks wobbling loose? Upgrade your looseball bearing bottom bracket to a sealed bearing system with this kit.

This replaces the bearings and the 8 spline spindle with compatible aprts to upgrade your bike.

Includes American Sealed bearing bottom bracketand 8 spline 19mm spindle to convert your looseball 8 spline cranks to sealed bearing.

Alsofits MID BB’s if you knock the bearings out of the alloy cups.