FRAME’S BOTTOM BRACKET BOX TYPEInternal diameterFRAME’S BOTTOM BRACKET BOX DIAMETER
M36mm X 24 tpi L=70mm (“italian”)34,8 mm threaded70 mm
1,37” *24 tpi (BSA “english”)33,5 mm threaded68 mm
1,37” *24 tpi (BSA “english”)33,5 mm threaded73 mm
BB3042 mm68 mm
BB3042 mm73 mm

NOTE FOR MEASUREMENT

  1. Remove crankset and bottom bracket, included bearings and cups (if any)
  2. Measure internal diameter
  3. Measure width

NOTE: in order to verify the real compatibility, please don’t consider the type of bottom bracket removed, but the real measures of frame’s bottom bracket box.