Rear brake

[MikeinGA]

Why does the rear brake wear more than the front? The rear brake pads are worn more on the left pad(the one closest to tire) then the right. The right pad is .049 inchs and the left is .035 inchs. The book has the pads at 1 mm (about .040) thick before changing. I got new pads from BajaRon, I hope they last longer than 13,000 miles.

Mike

 

[NancysToy]

The rear wearing more has puzzled me, too. It could be that there are two fronts but only one rear. The fronts take more of the braking load, but probably not twice as much. The total frontal pad area is certainly greater. As to the left and right pads in the same caliper wearing unevenly, that is probably a result of the caliper not floating as freely as it should. When you replace the pads, be sure to remove the sleeves, clean them and the o-rings, and lubricate the o-rings, sleeves and pins with disc brake lube. The piston side pad does usually wear more, but yours may be a little farther apart than would be optimal. It's a judgement call, there are no specs. I got 14K out of my rear pads, so yours seems to be typical.

 

[MikeinGA]

The rear wearing more has puzzled me, too. It could be that there are two fronts but only one rear. The fronts take more of the braking load, but probably not twice as much. The total frontal pad area is certainly greater. As to the left and right pads in the same caliper wearing unevenly, that is probably a result of the caliper not floating as freely as it should. When you replace the pads, be sure to remove the sleeves, clean them and the o-rings, and lubricate the o-rings, sleeves and pins with disc brake lube. The piston side pad does usually wear more, but yours may be a little farther apart than would be optimal. It's a judgement call, there are no specs. I got 14K out of my rear pads, so yours seems to be typical.

I was told that due to the the size and weight of the rear wheel and a single piston caliper and that the rotor are about the same size as the front brakes, the rear brakes need more pressure to work. It's an easy job to change the rear brake pads and BajaRon pads are only $35.95 and no tax or shipping.


Mike