| Diagram | Fig. 21 — FRONT WHEEL · ref 5 |
| Subsystem | wheels |
| Listed in parts books | 1974, 1976–1978 |
RIGHT FRONT HUB 1973-78 T140 37-7059
Right-hand front disc-brake hub for 1973-78 T140 twins, later renumbered 37-7059.
This is the right-hand front wheel hub for the disc-braked front end fitted to T140 750 twins, the part that carries the wheel bearings and mounts the disc rotor at the front of the bike. It's a Triumph part, and in our records it later got renumbered to 37-7059, so if you're chasing this one down from a newer parts book, that's the number to cross-check against.
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The catalog places it squarely in the front wheel assembly, on the right side where the disc brake lives. If you're rebuilding a front end from the ground up or replacing a hub that's cracked, worn out its bearing seats, or been swapped from a drum-brake wheel, this is the piece you're after.
Given it only shows up under this number in one catalog entry, we'd suggest double-checking against your bike's actual front end setup before ordering, especially if you're not sure whether you're dealing with the earlier or later disc brake arrangement.
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