| Diagram | Fig. 19 — Handlebars, Disc Brake Master Cylinder and Hose Group · ref 12 |
| Subsystem | engine top |
| Listed in parts books | 1975 |
Norton Spring
A front brake master cylinder piston spring for Norton, catalog number 06-1906.
This is a spring listed under Norton part number 06-1906. The catalog record ties it to the front brake master cylinder and hose group, and it shows up once in our records against a 1975 model year.
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Catalog notes point to it being the piston spring inside the master cylinder body, the small spring that sits behind the piston and helps return it to its resting position after you let off the lever. It's a minor part but one that matters if your front brake feels soft or slow to release.
We don't have much more detail on this one beyond that single catalog listing. Call the shop and we'll confirm fitment before you order.
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