| Also known as | W1121 |
| Diagram | Fig. 21 — QUICKLY DETACHABLE REAR WHEEL (NOT U.S.A.) · ref 26 |
| Subsystem | wheels |
| Listed in parts books | 1960–1962, 1964–1969 |
Brake anchor plate
Rear brake anchor plate for the quickly detachable rear wheel assembly, part number 37-1121 (also W1121).
37-1121 is the brake anchor plate used on the quickly detachable rear wheel setup, also known under the older W1121 part number in earlier books. It's the plate that carries the brake shoes and backing for the rear drum, letting the wheel itself pull out of the frame for repair or a flat without disturbing the brake mechanism.
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This is drum-brake era hardware, cable operated, no hydraulics involved. It shows up across catalog listings from 1960 through 1969 tied to the quickly detachable rear wheel figures, including a version noted specifically for non-U.S.A. spec bikes, so there may be more than one variant depending on market.
If you're chasing this part for a QD rear wheel rebuild, have your frame and wheel in front of you when you order — the plate has to mate up correctly with the shoes, springs, and the wheel spindle assembly it bolts to.
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