| Diagram | Fig. 31 — HANDLEBARS AND CONTROL LEVERS · ref 21 |
| Subsystem | brakes |
| Listed in parts books | 1974, 1976–1978 |
DISC BRAKE LEVER - CHROME/ STEEL Replaces 97-4391
Chrome steel front disc brake lever for the handlebar-mounted master cylinder, replaces older PN 97-4391.
This is the front brake lever that operates the disc master cylinder on the handlebar - the lever you squeeze to actuate the hydraulic front disc brake. It's a chrome-over-steel piece, and it's what your hand actually pulls on every time you brake with the front disc setup.
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Our catalog shows this one replacing an earlier number, 97-4391, so if your parts book lists that older number for the lever on your bike, this is the current equivalent. It shows up in our records across front brake figures from the mid-1970s into the late '70s, which fits the era when Triumph twins and triples were running the hydraulic disc front brake instead of the older drum and cable setup.
These levers take a beating - dropped bikes, curbside tip-overs, and just years of squeezing wear on the pivot and the chrome finish. If yours is pitted, bent, or the pivot's sloppy, this is a straightforward swap at the master cylinder.
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