| Diagram | Fig. 13 — FRONT FORK · ref 61 |
| Subsystem | forks front |
| Listed in parts books | 1969–1970 |
BSA Locknut, heat sink bolt (5/16" British Standard Cycle)
A 5/16 inch BSC locknut used in the front fork assembly, per catalog entries from 1969-1970.
75-3144 is a locknut used on the front fork assembly, sized to a 5/16 inch British Standard Cycle thread. It's the kind of small hardware piece that gets overlooked until it's missing, and then the part it was securing starts working loose.
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The catalog ties this locknut to the front fork figures, appearing across entries from 1969 through 1970. Beyond that, we don't have more detail on exactly which fork component it locks down - the record just places it in the front end.
If you're rebuilding a fork assembly from this era and need to confirm this is the right locknut for your application, call the shop and we'll check it against your fork parts before you order.
We've never carried this one. Tell us what you're after and we'll go looking — you'll get a price and photos before you commit to anything.
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