|03-09-2014, 08:09 AM||#1|
Joined: Nov 2013
Location: North Carolina
Help me set up my suspension
I have a 1999 DR350SE that has adjustable front and rear suspension.
I'd like to set it up for my 195 lbs, but have no idea what I'm doing or what I'm supposed to be doing.
So far, I have increased the preload in the rear to reduce sag a little bit when I sit on it. I've measured the distances and get a 1-3/4" difference in sag from the raised-off-the-ground position to it sitting on the ground and a 4" difference from the raised position to when I'm sitting on it. What numbers am I shooting for on sag?
Also, help me understand what compression damping and rebound damping is and what it does in the real world. I'm assuming that compression damping is how much the shocks "soften" the blow and rebound damping is how quickly they return to their uncompressed state.
"It's more fun to ride a slow girl fast than a fast girl slow."
|03-09-2014, 09:46 AM||#2|
Joined: Jul 2008
Location: So. Oregon
I found this helpful.
Race Tech offers springs and Gold Valves (spring for your weight and valves for control)
|03-09-2014, 06:27 PM||#3|
Joined: Sep 2009
Location: Magalia, CA./ Butte & Siskiyou C.
Here's another link that was helpful to me...
http://slavensracing.com/ I just finished doing the suspension on my KTM, didn't know anything about it, did a lot of reading, asked a lot of questions and the bottom line was you can't do anything until you get it sprung properly for your weight. I did that and what a huge difference. I didn't change any valving but have been messing with my dampning and rebound, I've got it dialed in pretty well now and am so happy with it.
Spring it to your weight first, get the sag right and go from there. Learning can be and is a fun process. Several video clips at Slavens racing that are helpful.
No, I don't know where that road goes, let's find out!
|03-09-2014, 07:26 PM||#4|
Joined: Jun 2011
Location: Northern California
I think you can crank it down a little more. One or two turns if you had ALL your gear on. 3-4 turns if you were in street clothes.
You want about 30-35 mm or 1-1/4" free sag. The race sag with all your gear on should be around 100mm or 4". Race sag is the total sag, the difference between you on it with gear, and the bike on the work stand.
If you have much more than 12 mm of preload you likely really need new springs and some shim shuffling. (revalving)
When the rear spring is right for your weight, it will need only a few mm of preload and your sag #'s will be correct.
All my gear weighs in excess of 30 pounds, so it makes a big difference in your sag numbers.
I only rode a DR350 for an hour or so, and will say that you definitely need new fork springs. The stockers seemed very soft and I was just cruising along the trail.
Yes you are correct on the clickers. You prolly need more compression dampning. Too much rebound damping and it doesn't have time to return to full length when riding washboarded dirt roads for instance.
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