Enjoy the precision and fluidity of ceramic bearings with the BB30to24 bottom bracket.This model of the ROTOR brand is used to install a bottom bracket with a 24mm axle in a frame with the BB30 standard.The part around which this component has been created is a high quality aluminum body (7075 T6, heat treated) and has ceramic ball bearings.The very low friction coefficient of these balls guarantees greater fluidity, excellent power transfer and longer bearing life.In addition, the threaded system ensures that it is watertight.High quality technology at the service of your happiness and performance.