| Also known as | H506 |
| Diagram | Fig. 17 — TELESCOPIC FRONT FORK, T90 AND T100 · ref 9 |
| Subsystem | forks front |
| Listed in parts books | 1960–1962, 1964–1966 |
HANDLEBAR CLAMP TR6C 1IN PREUNIT TRIUMPH
A 1 inch handlebar clamp for pre-unit Triumph front forks, appearing across TR6C, T90, T100, and T120 fork figures.
This is a handlebar clamp for 1 inch bars, listed under Triumph's pre-unit line and tied to the TR6C in the catalog description. It shows up across several telescopic front fork figures spanning the T90, T100, T100SS, T100C, TR6, and T120, so the same clamp saw duty on more than one model's top fork assembly during the period these parts books cover. The old book number for this one is H506, if that's what's printed in the manual you're working from.
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The clamp's job is straightforward: it holds the handlebar in position at the top of the fork, sandwiching the bar against the fork top nut or bracket so it doesn't rotate or shift under load. It's a small part but an important one for keeping your steering geometry where you set it.
Given how many different fork figures this number turns up in, it's worth double-checking your bar diameter and the fork top arrangement on your particular machine before you order, since pre-unit and early unit Triumphs went through a few variations in this area.
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