C-Bear PF42-30 Ceramic Bottom Bracket

The C-Bear BB30A Cannondale Hollowgram Compatible Bottom Bracket is a high-quality bottom bracket that uses ceramic ball bearings in order to provide you with as little resistance as possible meaning more of your effort propels you forward as you ride. * Diameter: 42mm * Width: 73mm (Road) * Material: Precision machined CNC aluminium cups * High-quality ceramic ball bearings