I noticed this the last few times I had it out. Someone had posted that the axle nut gets loose and starts making a clicking noise.Ok, I am assuming this is still a thread about angle drive noise or A.K.A. unknown rear noise. I just put new tires, Toyo R1R's, onto stock rims and I am now noticing a clicking or clunking noise coming from the rear. It seems like it only does it when there is a load on the belt , because with it not running and in neutral, we can push it and it does not make noise. We can be in the bike, in gear and the bike makes the noise about every turn of the rear tire? Any body else notice this? I got out and looked under and in the area of the rear tire and gears but did not see any evidence of rubbing or a foreign object but you never know. Anybody else heard of or is having this issue?
Mine did not do this till after they did my first service last Tuesday. The whine was just about gone before the service as well, but after they tightened the belt the whine got louder again.
I bet Alphas chain drive will be very revealing about just what the source of all the noises are.