bicycle parts 1.high intensity 2.seven lengths 3.resonable price,square hole 5.best after-sale service Bicycle parts Comprehensive FeaturesType Bicycle Bottonm Bracket partsModelBB-CH52ColorblackMaterialaluminium alloyLength107,111,113,115,118,122.5,127stylesealed ball bearing, inner six baseweight290gProduction CountryChinaSale StatusNew, off the shelfSpecificationsWe are professional trading ...