Park Tool Bbt-5 / Fr-11 Bottom Bracket/Cassette Tool - BBT-5/FR-11C
Park Tool Bbt-5 / Fr-11 Bottom Bracket/Cassette Tool - BBT-5/FR-11C, Heat treated alloy tool steel, one inch base fits wrench or bench vise. Thin wall construction allows use without removal of cones and locknuts. Features: Fits all Campagnolo(R) cassette lockrings Also fits Campagnolo(R) RecordT, ChorusT, CentaurT, and AthenaT bottom brackets The outside diameter of the BBT-5/FR-11 is 22.8mm and has 12 splines