I literally keep my bike in show ready condition at all times. So, I was very embarrassed and shocked to be told by the shop that I had 4 1/2 teeth missing out of my rear sprocket. They discovered this on the Dyno when the bike vibrated. I literally wipe down the back wheel before every ride and I can’t believe I never noticed the missing teeth. Anyways, he said it was due to sprocket being aluminum and the chain being too tight. I’m kind of in a quandary because with the turbo and all the torque you’re supposed to keep it fairly tight . I’m certainly going to back off on the tension a little bit this time around.