| Also known as | 57-3929 |
| Diagram | Fig. 14 — CLUTCH · ref 2 |
| Listed in parts books | 1970–1972, 1974, 1976–1980, 1983, 1985 |
CLUTCH HUB 650/750 OVRSIZ
Oversize clutch hub center for Triumph 650/750 twins, the splined hub the clutch plates ride on inside the primary drive.
This is the clutch hub center, an oversize version listed for Triumph 650 and 750 twins. It's the splined component the clutch plates ride on inside the primary drive, carrying engine power out to the gearbox through the clutch assembly. The 57-3929A number is the current form of this part, with 57-3929 as an earlier alias for the same piece.
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Being an oversize hub, it's meant for cases where the original has worn or been machined and a standard replacement won't seat correctly. If you're rebuilding a clutch assembly and finding play or wear at the hub, this is the part to look at.
Our record on this one is brief beyond the description itself, so if you're not sure whether the oversize version is what your clutch needs versus a standard hub, give the shop a call and we'll sort out which one you're after before you order.
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