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BMX ボトムブラケットの規格

StyleTypeMFG#ODWidthID
R12 Pressed CupsR1241.2mm11.1mm19mm
EuroThreaded CupsB536
2231
32mm
31mm
7mm
7mm
19mm
22mm
Mid41mm OD Pressed BearingsR12
R12/22
41.2mm
41.2mm
11.1mm
11.1mm
19mm
22mm
Spanish37mm OD Pressed BearingsMR1937
MR2237
37mm
37mm
9mm
9mm
19mm
22mm