Kickstart ratchet lockwasher
BSA WM20, M20, M20WD, and M21 (1937 to 1947)
BSA M20, M21, B31, and B33 (1948 up)
Part number: 24-4278
Inner diameter: 15 mm
Outer diameter: 25.5 mm
Kickstart ratchet lockwasher
BSA WM20, M20, M20WD, and M21 (1937 to 1947)
BSA M20, M21, B31, and B33 (1948 up)
Part number: 24-4278
Inner diameter: 15 mm
Outer diameter: 25.5 mm
| SKU | 24-4278 |
|---|