Well, after hearing how easy it is to change brake pads on an S83 I decided to give it a try.
I had over 8600 miles on the original pads. Some were surprised I got that many miles out of them. Well this is what I found.
The front brakes - outside pad about 50% - inside pad about 20%
The rear brakes - outside pad about 80% (almost looked new) - inside pad was gone 0%. No pad left at all! Don't understand the differences in wear.
I replaced the pads with DP Sintered Metal Pads. OMG what a difference! Brake feel and performance reminds me of some sport bikes I've had and/or ridden.
After getting the pads seated in had a good day of hard riding. No brake dust, no brake noise and unbelievalbe brake performance.
Changing the pads was as easy as I'd heard also. No need to remove the calipers. Remove the cover shield on both calipers. The back one is a black plastic, pops right off. The front one is a metal chrome piece held on by two phillips screws. With needle nose pliers remove two spring clips, two retaining pins. Two metal rod pins slip right out freeing the pads to be lifted directly up and out. This is the same for the front and rear brakes. Before lifting out the old pads I loosened the caps on the brake fluid resevoirs front and rear and applied pressure against (between the two pad) the pads to push the caliper pistons back to make room for the new pads. Once the old pads are out simply drop in the new pads. Held new pads in position while replacing the two rod pins. Replace the retaining pins (cotter pins) and replace the spring clips. Snap on the rear cover plate and reattach the front cover plate. Tighten up the caps on the brake resevoirs and all done! Took all of 30 minutes. Next time think I can do them in about 15 minutes.
One of my complaints about the S83 was poor brake performance, brake noise and lots of brake dust. The factory pads just plain suck! I wish I'd changed over to these pads when I first got the bike! Unbelievable difference.
*edited to correct a typo*