Praxis Works M30 Bottom Brackets 86-4001S

- Praxis M30 crank spindle specific 30mm drive bearing/28mm non-drive bearing \n- For use with Zayante Carbon, Zayante Carbon-S, Zayante alloy, Alba, Girder and Cadet cranks \n- Made with Enduro bearings and high grade grease \n- Praxis M30 BB tool required for installation for versions with external cups, use PX8980/8981\n- Unauthorized online sales prohibited by manufacturer