Hi chaps, just after opinions or even engineering facts on whether it's ok to mount my rear shocks on an M12 bolt in single shear, on the axle.

Like AdamR has here:
http://www.locostbuilders.co.uk/viewthread.php?tid=78935

Ta

Westfield rear dampers are mounted onto the top of the rear upright by a 7/16"UNF (11mm) bolt in single shear, so I think you will be alright.


Mal.

Use NEW bolts, preferably 12.9 rated capheads. How long are the bolts in question. I could probably post you a couple.
Geoff.

Many older bikes had a single shear stud fixed to the swingng arm for the lower mounting

Yes its not a problem. Too early in the morning to be bothered to do the maths, but if you do a search I have posted figures for the yeild and UTS of various sizes of bolts in single and double shear over before.

Cheers,
David

thats what i did on mine !