Shimano Bottom Bracket Identification
Shimano Bottom Bracket identification codes are prefixed BB.
If you need our help finding parts and spares we will ask you for the Shimano code of your component.
On a tapered square bottom bracket the code is on the body (Highlighted in Blue)
On an External Bearing bottom bracket the code is on the cup (Highlighted in Blue)
1.37 X 24 = English Bottom Bracket Threading
36 X 24 = Italian Bottom Bracket Threading
