| Diagram | Fig. 9 — GEARBOX SHAFTS AND GEARS · ref 22 |
| Subsystem | gearbox |
| Listed in parts books | 1983 |
Gearbox Sprocket 21T
A 21-tooth gearbox countershaft sprocket for the final drive chain, cataloged for 1983.
57-7067 is a gearbox sprocket, 21 tooth, out of the GEARBOX SHAFTS AND GEARS section of the parts book. It's the countershaft sprocket that carries the final drive chain off the transmission, sized a couple teeth larger than the standard sprocket fitted at the factory.
Read more
The catalog only ties this one to a single model year, 1983, and the record doesn't spell out which specific bike or engine size it was speced for beyond that. If you're trying to match this against a 5-speed gearbox, it's worth calling the shop to confirm before you order, since going up a couple teeth on this sprocket usually means clearance work elsewhere in the case.
We've also seen this part cross-listed under 57-4785 in other records, so if that's the number printed in your book, it's the same physical piece.
Sorry if we got something wrong here. If you think this information isn't correct, .