| Also known as | W3753 |
| Diagram | Fig. 22 — REAR WHEEL · ref 10 |
| Subsystem | wheels |
| Listed in parts books | 1971–1974 |
SPACER REAR CONICAL INTERNAL
Internal spacer for the conical rear hub, positions the bearings inside the wheel.
This is the internal spacer for the rear conical hub, catalog number 37-3753, also listed under the older W3753 designation. It shows up in the rear wheel section of the parts books for 1971 to 1972, and it sits inside the hub between the bearings, keeping everything positioned correctly as the wheel spins.
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It's a small, unglamorous part but an important one - a worn or wrong-length spacer in there can let the bearings shift or bind, which shows up as play in the wheel or uneven wear down the line. If you're rebuilding a conical rear hub from this era, it's worth checking this piece while everything's apart rather than assuming it's fine.
We don't have extensive notes on this one beyond its place in the rear wheel assembly, so if you're not sure it matches what's on your bike, give us a call and we'll confirm before you order.
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