C15 rear frame lugs

Started by DANFINN, 01 Sep, 2023, 18:25

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DANFINN

Can anyone confirm the thread inside these lugs, that the rear mudguard bolts to. Cycle or BSF??

Thanks
1950 M20 Nearly there, just a firing up problem
1953 M21 getting it all together
1967 C15 oily rag but runs very well
1962 Ariel Golden Arrow, needs a lot more work

Colin SS90

The lugs on the rear subframe just above the chain guard are BSC (cycle)
1964 SS90

DANFINN

Thanks Colin I can now run a tap down to clean up the threads :)
1950 M20 Nearly there, just a firing up problem
1953 M21 getting it all together
1967 C15 oily rag but runs very well
1962 Ariel Golden Arrow, needs a lot more work