Motorcycle Discussions > British Bikes

but size for Centre tank- Exhaust downpipe diameter

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bwg3coy:
I have a 1977 Triumph Tiger TR7V.
I have forgotten the nut size of the Centre tank nut?
Also the diameter of the exhaust down pipe? I think it’s 350mm?
Can anyone help

Rex:
350mm would be the diameter of the exhaust pipe on the QE2! ;)
From a (very distant) memory, the nut is 5/16" UNF.

bwg3coy:
Thanks Rex👍

Grunt:
The tank mounting nut and stud is 5/16UNF, part numbers 14-0302 and 83-4930. The diameter of the into head exhaust on my ‘77 Bonnie is more canal boat size at 35mm.

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