Hi All. I had a set of long saddle spring posts off John O'Brien. Can anyone tell me what the nut size should be on them ? Nothing metric I have fits so I assume these are done correctly in an imperial size. Imperial confuses me as I am only 52 years old !!

email (option): richardpurkiss@hotmail.com

5/16 bscy

BSCY...British Standard Cycle...Also referred to as CEI ...Cycle Engineering Institute. For the nut in question it is 26 TPI...Ian

email (option): ian@wright52.plus.com