| Also known as | W1722 |
| Diagram | Fig. 17 — FRONT WHEEL · ref 8 |
| Subsystem | wheels |
| Listed in parts books | 1967–1970, 1974 |
Hub and brake ‘drum
Front wheel hub and brake drum casting for the drum-brake front end, part 37-1722.
37-1722 is the front hub and brake drum unit, the combined casting that carries the wheel bearings and gives the brake shoes a surface to work against. It shows up across a run of front wheel figures in the parts books, including the T100T and T100R listings, so this is a front-end part, not a rear.
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The legacy number for this one is W1722, if that's what's printed in your parts book. The catalog spread on this part runs from 1967 to 1974, and it appears in nine separate figure listings, including a later-type front wheel drawing, which tells us the hub went through at least one revision across that span.
Because there's more than one version of this hub in the record, it's worth checking your own front wheel and spoke pattern against what you're ordering before you commit. Give us a call if you're not sure which version matches your bike.
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