sprocket nut

[sinto607276]

Personally I prefer the old "prevention is better than cure method".

My 9mm nut fused itself on and my mechanic had trouble getting the thing to budge at all.

I understand darrsi, but I'm saving up for a complete set of sprockets and chain, don't think it'll make any difference now if I wait a month or two to change the lot together,  and I'll probably now wait till winter then I can strip the whole back end down including swingarm and then can get an endless chain instead of an open one