Your valued opinion please! Can I still ride with this broken?

[laserracer]

or the ultimate KTM fix seems to be ...... paint it orange.......that shoild fix it

[motorbyclist]

It was suggested the problem is vibration resonating through the light rear sprocket that shook the nuts loose. I am inclined to agree as the problem seems to have started after a new sprocket was attached.

My mate had the same problem with loosening sprocket nuts on his YZ426F which simply refused to go away after months (years?) of loctite, double nuts and then double nylock nuts, before the holes in the hub went visibly oval and he drilled them out to fit bigger bolts... using a hand drill... end solution was a blingy new rim from the states for around $500

and yes, it can be a problem as when the bolts came out while riding they hit the swingarm and locked the wheel thus stalling the motor.... I even rear-ended him once because of it and gave him a fair knock as I flew over my handlebars and into his shoulder

You probably mean Bruin engineering. Tjebbe Bruin (spelling??) I have lost his number now! Look for a Waitamata ride brouchure or thread he has a lot to do with that club ( I think).
He's in Glenfield somewhere I think? he made the fly wheel weight for my Cr250 many moons ago has a workshop in his home with lathes etc he's very good.

+1 he did a mint job welding up my magnesium flywheel cover too