If your a machinist by trade you might consider the Scotts with a fender mount.
The why of that?
Well, because, for starters. Other than that:
The Scotts top mount requires probably more space between the clamp and the bars than you have. Certainly that's true with the oem bars with the welded crossbar. That means you will be in the market for a set of bars with a bowed crossbar. More coin.
The closer to the point of impact the damper is the less flex will be generated between the two points. The KDX bars are mounting thru some quite soft bushings. Consider what these bushings will be doing when asked to deal with the huge forces the damper is trying to regulate. They will get tweaked. Scotts lists such tweaking as the #1 cause for damper failure (in the last Scotts install procedure I read anyway).
The WER is fender mounted. Do some looking around this forum and you will find a number of problems that are common with the WER. For one, it commonly damps differently from one side to the other. Some have had WER rebuild their dampers only to get the same result! WER repeatedly says (they've told me repeatedly) it must be a problem with cable interference. I tell them the thing does it on the BENCH...and they REPEAT the cable interference blather.
HELLO!! ANYONE HOME!!??? :bang:
I've ridden with a WER and a Scotts. The Scotts is hands down a better unit imo.
While the general idea is, 'If you can feel it, it's too tight,' I'd prefer at least being able to MAKE it too tight so I could then back off from that 'max' point. I'm running 15W in my WER right now..and it could be tighter.
Yeah...most 'racers' use 5wt. That's nice. I'm glad they like it.
Get the Scotts. Skip the mounting kits. Fabricate your own fender mount.
Have fun!