Replaced my pads tonight. About 650 miles on them, not much left on 3 pads, and the 4th just barely completely gone on one end.
Hard miles, loaded down, stop and go, mudd, and alot of coal+shale.
$14 bucks for both front sides, shipped on ebay from Sixty. Seem to be decent pads. Part numbers are fa135 and fa165.
They cross reference to alot of machines, same pads the Suzuki ltr 450 uses up front, so there pretty easy to find. For the price I just don't think you can go wrong.
Will be out riding Saturday, I'll report back.