Cyclingceramic Bottom Brackets 30 Shimano
WebB0 Bottom Bracket for Shimano Road The B0 standard opened up design possibilities for frames Adapting it for Shimano cranks takes aWebPF42 (also known as B0, B0a, B0ai, BBright™ Direct Fit) The term PF42 refers to the inside diameter of the shell The term B0 was an early term in the history of this standard
