Its the FL roads. If everyone pays a little more attention to your tires it will happen to anyone that uses there bike to commute with. All of our roads have a angle to them. They do this for run off water. So it can go to the cutters on the side of the road. If you look when it rains on us 19 that the outside lanes will almost always flood and the other two stay dry. I see tires come in here all the time with the same where pattern.


Nothing should be wrong with your bike.

 

from the sound of it I think his is more extreme but that does explain why most people wear out the left side first , good info