PLEASE NOTE: Delays in processing. Orders placed between Thursday 11 April and Wednesday 1 May will be processed 02 May.
Gearbox mainshaft gear, 20T x 16T, BSA, M, B SERIES, genuine NOS,to suit BSA M20, M21, B31, B32, B33, B34 etc Original part number 24-4231 - 20/16 Tooth. To suit BSA M20, M21, B31, B32, B33, B34 etc