MegaExo Bottom Bracket - English Mega Exo Bottom Bracket Options:MegaExo Steel Mountain Bottom Bracket for BB89.5 and BB92 Frames, Plastic Cups 6 hardened stainless-steel band layers

6 hardened stainless-steel band layers wrapped in an aramid fiber jacket

Multifunctional

it's amazing at maintaining traction while climbing

Made of Polyurethane and foam with adhesive backing

Rounded edge for improved safety

MegaExo Bottom Bracket - English Mega Exo Bottom Bracket Options:MegaExo Steel Mountain Bottom Bracket for BB89.5 and BB92 Frames, Plastic Cups 6 hardened stainless-steel band layersFSA MegaExo Bottom Brackets Features alloy cups, composite center tube and stainless bearings Due to varying dimensional tolerances between manufacturers, FSA MegaExo bottom brackets are not compatible with any other brand of crankset Different models of MegaExo bottom brackets are designed to be specific to each model of FSA crankset Compatible with pre 2014 Gossamer and Energy cranksets that utilize pinch bolts