Product Description The bottom bracket fits Miche's Pistard 2.0 crank. Specifications:Application:Track, RoadType:BB386EVOShell Diameter:46 mmShell Width:86.5 mmAxle Diameter:24 mmTechnical Information:Bearings:cartridgeBottom Bracket Cup Material:synthetic resinFeatures:double sealedManufacturer Number:BB866B Contents:1 x Miche Evo Max BB86 left bearing cup with bearings1 x Miche Evo Max BB86 right bearing cup with bearings1 x Miche bottom bracket shell Weight: black | BB386 Evo: 94 g Manufacturer: MICHE S.R.L. Via Olivera 19 31020 San Vendemiano (TV) Italy info@miche.it