| Diagram | Fig. 21 — FRONT BRAKE · ref 1 |
| Subsystem | brakes |
| Listed in parts books | 1979–1980 |
MASTER CYLINDER ASSEMBLY 1979-83 (STAINLESS BARREL) STANDARD BORE
Complete front brake master cylinder assembly with stainless barrel, standard bore, for 1979-on Triumph twins with hydraulic front disc brakes.
This is the front brake master cylinder assembly for the hydraulic disc-brake front end that came in on Triumph twins from 1979 on. It's a standard bore unit with a stainless barrel, which was Triumph's answer to the corrosion problems that plagued the earlier alloy-bore master cylinders. It mounts up on the handlebar and is what a rider pushes fluid through when squeezing the front lever, sending pressure down the line to the front caliper.
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The catalog shows this part appearing for the 1979 model year on the FRONT BRAKE figure. It's the complete assembly, not just a rebuild kit, so this is a straight swap-in if your existing unit is pitted or leaking internally from bore corrosion.
If you're working from an older parts book on a pre-1979 bike, this isn't your part - the earlier master cylinders were a different design. Give the shop a call if you're not sure which style your bike left the factory with.
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