| Also known as | T1585 |
| Diagram | Fig. 7 — GEARBOX AND CASING · ref 1 |
| Subsystem | gearbox |
| Listed in parts books | 1960–1962 |
GEARBOX COMPLETE — WIDE RATIO
A complete wide ratio gearbox assembly, listed under the older T1585 number in early parts books.
57-1585 is a complete gearbox assembly, listed in the parts books under the wide ratio designation. It shows up in the GEARBOX AND CASING figure, so this is the whole box as fitted to the frame, not just an internal component. The older parts book form of this same number is T1585, so if you're working from an early book that's what you'll see listed instead of 57-1585.
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Catalog records place this across 1960 to 1962, which tells you the years it turns up in the books rather than a single specific model. If you're trying to match this to a particular machine, cross check the casing and internal ratios against what's currently in your bike before ordering, since a complete gearbox swap is not a small job to get wrong.
Call the shop if you want to talk through what's involved in fitting a complete replacement box versus rebuilding what you've got — sometimes it's more sense to sort the internals than swap the whole unit.
We've never carried this one. Tell us what you're after and we'll go looking — you'll get a price and photos before you commit to anything.
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