Shimano Tiagra RS500 Bottom Bracket 70mm M36 Italian Hollowtech II

Shimano Tiagra RS500 Bottom Bracket 70mm Italian Thread Strong and smooth, the Shimano Tiagra RS500 Bottom Bracket is for use with 2-piece cap-free design road chainsets. Features: Minimal bearing interface gives superbly smooth rolling Easy installation Weight 92g ( approx )