I got my drive chain adjusted the other day and on the way back home I noticed my motorcycle wasn't performing properly. Acceleration was off and topped off at 93 when it usually goes to about 110mph top. I got home and propped the motorcycle up on a rear stand and started to rotate the wheel. I noticed there was this rubbing sound coming from the brake pads. My r3 is my first bike so I am not sure if this is normal or not