| Also known as | TF71 |
| Diagram | Fig. 25 — REAR WHEEL · ref 12 |
| Subsystem | wheels |
| Listed in parts books | 1976–1979 |
Washer - speedometer drive gearbox
Washer used with the Smiths speedometer drive gearbox on the rear wheel, right-hand side.
This is a washer that fits with the speedometer drive gearbox setup on the rear wheel, on the right-hand side where the Smiths speedo drive box mounts. The old parts book lists it as TF71, which is the same part as today's 37-7021.
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It is a small, simple piece, but on a rear wheel with a speedo drive gearbox, having the right washer in the stack matters for how everything seats and how much drag or play ends up in the drive. The catalog ties this one specifically to the rear wheel figure that calls out the Smiths speedo drive box on the right-hand side.
The catalog record does not tie this to a specific model year beyond the general span it shows up in, so if you are matching this against what's currently on your bike, confirm fitment before ordering.
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