yep, its happened to me...no sprocket nut!
took the cover off just to check as ive only had the bike a couple of weeks...no nut, just the tab washer laying in the sprocket cover.. the thread is fine and so is the sprocket... the thread is dirty as though its been missing a while.
ive only done around 40 miles on it so far, and its the 1st chance ive had to check it...glad I did..
they are recent chain and sprockets sets, so im guessing they either fitted the old nut or the 9mm one and not tight enough???
anyway, guess il be trotting off to a dealers tomorrow for a new one.
