Odd brake dust pattern

[rcfanatic]

For some reason my rear wheels gather much much more brake dust than my front wheels. This seems counterintuitive because the front does more of the braking. So I'm wondering:

1. Does anyone else experience this?
2. Could my front brakes not be fully functioning?


Thanks

[delatlanta1281]

Maybe different compound pads.

[Van Westervelt]

I would suspect a different pad front to rear as well.

[jlevie]

A bad bias valve or sticking calipers could cause the rear brakes to be doing more work than they should.

[rcfanatic]

Is there a way to test the bias valve before I spend money on a new one?

[jlevie]

You could rig up a test jig, but I suspect the parts to do so would cost more than a new bias valve. And then there's the problem of locating the specs that define the pressure curve of the bias valve.

[325ix]

I would think different pads. Maybe a low dust in the front?