hello, I have a problem with my cb500 (BJ. 1997, KM: 24000) when I drive one hears a very loud whistle from the direction of the front pinion. it depends on the speed, because if I uncouple and let it roll out, it gets slower and slower to the standstill. in the stand one hears nothing, however, if you put it on the main stand and then insert the gear and the wheel drives again already. it definitely does not come from motor because as said in stand independent of the speed is it’s gone. the noise has been there for a few months now, at the beginning only rarely and relatively quiet, but with the time it came more and more often and also louder. Sometimes only with gas acceptance, differently constantly. even now it’s still the case that she sometimes does not have it again for a while, but if then louder than the motorcycle itself. what could that be, thought so much about the bearing of the pinion shaft hope you can help me, took up the noise and added greetings chris