2012 WR450F, lightened 22 pounds. Runs great. I'm, 6'1", 215-220 pounds in street clothes. My riding gear is pretty light.
Forks resprung with 0.50 Kg/mm Racetech springs. Oil level 330ccs. Fork rebound is -2 clicks from stock. Fork compression is about -4 from stock.
Shock resprung with 6.0 Kg/mm Racetech spring. Rebound -1 from stock. HS compression, about 1.5 turns out. LS compression, about 4 clicks out from stock. Pretty soft, pretty plush, at least compared to some bikes I've ridden.
My WR is mostly used in tight woods. Occasionally on ATV trails. The front is pretty plush in that it isn't deflecting off rocks and roots anymore. Nor do I get sore wrists ! The rear is still a bit rough on roots, but pretty good on everything else. A 3 foot drop will pretty much bottom both ends of the bike. 4 feet for sure. That doesn't happen often with where we ride.
Fork static sag is 21mm. Race sag is 52 to 58 mm. Both measured along the fork itself.
Shock static sag is 13mm. Race sag is about 98mm. Measured to the ground, so there is a bit of tire squish in there too. Probably 95mm if measured to the frame. I realize that is a bit less than what some recommend, but the bike turns a lot better with a tall rear suspension.
Problem: the front end seems to ride low all the time. It also seems to dive a lot when using the front brake, especially on downhills. I don't trust the fork on fast terrain, especially if its bumpy and/or downhill. The front end doesn't wash out since I put an IRC Vulcanenduro (VE33) on it and it seems to steer nice, but what do I know ?
I thought the forks were great when I first installed the 0.50 springs in them. Is my mind playing tricks on me or have they softened up ? FWIW, I bottomed the forks with the stock oil/springs on a regular basis in moderate bumps. That no longer happens, but I still feel the front is soft.
I realize that the forks would be somewhat stiffer if I had 350ccs of oil in them. Will bumping up the oil level be enough, or should I slap in a set of stiffer springs too. Judging by the sag numbers, the 0.50s seem stiff enough ? My concern is that increasing the oil doesn't increase the stiffness until they compress a bit, which is kind of too late in the stroke ?
Is anyone my size (about 195-200 pounds equivalent with the weight removed from my bike) running 0.52 or 0.54s on their WR in the woods and how do you find them ? What are your sag numbers ?
FWIW, my friend, who is similar in size to me, is running 0.5s on his YZ125 woods racer special. I think the forks are a bit stiff on it, but generally work well. Given that my bike weighs about 30 pounds more than his, shouldn't I be running at least 0.52s ?
Finally, does compressing the fork when tying down the bike harm the springs in any way ? I tend to crank down pretty hard on the tie downs when hauling my bike. Would measuring the free length of the installed springs tell if they are ? Does one need a spacer between the fender and the front wheel, like the KTM boys use ?
Thanks in advance !
Edited by MidlifeCrisisGuy, August 12, 2014 - 11:07 AM.