Extreme tire wear

[iRideGTP]

Any ideas to what made or is making this to my tire. i replaced the front passenger tire 4 months ago cuz it was just like this except a bit worse and yesterday i found out now its the same on the driver side. its in the inside of the tire about an inch of wear..looks almost like it was peeled. nothing seems to be rubbing against it and the passenger tire still looks great.alignment issue?