Bottom BracketAll products of Bottom Bracket Thread BB (T-47/C-60) » Previous Model No EMA-C6024-SHCBBR / EMA-T476824-SHCBBR / EMA-T476830-SRCB Catalogue Thread BB Key Features Compatible Frame ID: 45mm/Length: 82.5mm**EMA-C6024-SHCBBR**EMA-C6030-ROCBBRSPINDLE**ID:24mm for Shimano compatibleSPINDLE**ID:30mm for ROTOR 3D+ compatibleCompatible Frame ID: 47mm/Length: 68/73mmEMA-T476830-SRCBEMA-T476824-SHCBBRBearing: Steel Bearing & Ceramic Bearing Made inTaiwan