Wheels MFG 386EVO to Shimano 24mm Bottom Bracket386 EVO Thread Together Bottom Bracket. Designed for BB386EVO/BB392EVO interfaces with 24mm diameter spindle cranks (Shimano). Enduro ABEC-3 bearings provide durability and long bearing life. Features386 EVO Thread Together Bottom Bracket Designed for BB386EVO/BB392EVO interfaces with 24mm diameter spindle cranks (Shimano)Enduro ABEC-3 bearings provide durability and long bearing life SPECIFICATIONSMFG#386EVOBB-SHIMBBSpindle Interface Type Shimano Hollowtech II , FSA Mega Exo , FSA Mega Exo Light , Race Face EXIBB Shell Width (mm)86 , 92Bottom Bracket Shell I. D. 46BB/Frame Interface386 EVO , 392 EVOWeight133 | Wheels Manufacturing | 386Evo To Shimano 24Mm Bottom Bracket 386Evo, 24Mm Spindle, Abec-3, Black