ABI Ceramic Bearing Upgrade Kit Outboard Bbs
Grade 5 Silicon Nitride ceramic balls, graphite/nylon retainers. Ceramic bearings provide superior smoothness, reduced weight and extended bearing life. Replaces Shimano, FSA, or Race Face external cup BB bearings with 2 each 2437 ceramic bearings and 4 each seal and shims. Suggested for use with AB-9010 (outboard BB bearing replacement tool).
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