| Also known as | T1845 |
| Diagram | Fig. 8 — GEARBOX SHAFTS AND GEARS · ref 11 |
| Subsystem | gearbox |
| Listed in parts books | 1970 |
Layshaft c/w high gear (22T)
Layshaft complete with 22 tooth high gear for the gearbox, listed as 57-1845 (formerly T1845).
57-1845 is a layshaft complete with high gear, 22 tooth, as listed under the GEARBOX SHAFTS AND GEARS section of the parts book. On the older bikes it went under the number T1845, which is just the legacy letter-prefix form of the same part.
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The layshaft sits inside the gearbox and carries the gear cluster that the mainshaft gears mesh with as you work through the ratios. This particular listing is for the shaft assembly with its 22 tooth high gear fitted, so it's the whole unit rather than just a bare shaft or a loose gear.
Our catalog record shows this one appearing in a single listing tied to 1970, and it replaced an earlier version of the part, 57-1846. If you're working from an older parts book and see that number, it's the same physical part under its earlier designation. Give us a call if you want us to confirm which gearbox this one goes with before you order.
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