A word of advice: If your TBA has over 4500 miles on it your rear brake pads are probably gone! My rear wheel had started locking up under moderate braking so I pulled the rear caliper to check things out. Pads were gone with metal to metal scarring starting to show. This is with 5200 miles on the bike and I am not an aggressive rider. Front pads look fine and they take all the abuse! Ordered some pads from Brent and installed. I hope these last longer.