guidlines for setting sag?
Posted March 16, 2005 - 12:33 PM
-- You want the sag between 100-105 mm
-- You measure sag from the rear axle bolt to the bolt on the seat
-- the rider must sit with full weight on the bike while a partner measures the distance
-- sag is adjusted via tightening or loosening the rear shock spring.
Is this accurate? I've never checked it and want to.
Also, are the measuring points consistent for most dirtbikes? Because I would think different makes with different frame geometry might result in different recommended sags instead of the universal 100-105mm. Or are the differences minimal?
any comments about the accuracy or inaccuracy of my data would be greatly appreciated.
Posted March 16, 2005 - 12:49 PM
Posted March 16, 2005 - 01:33 PM
Posted March 16, 2005 - 03:52 PM
On rereading your original post, I missed that you didn't meas. the unloaded, wheels in the air measurement. You must make all 3; unloaded, bike sitting on the ground, bike+rider on the ground. Your "race" sag = unloaded-(bike+rider) and unladen sag=unloaded-bike on ground .... HTH
Posted March 17, 2005 - 12:37 PM
Posted March 17, 2005 - 12:44 PM
Posted March 18, 2005 - 06:36 AM
Posted March 18, 2005 - 08:46 AM
Without writing a book, I just want to caution you to set race sag first, then do static sag. If you are at 100-105mm race sag (while sitting on the bike), and you have between 15 and 20mm of static sag(while you are off the bike), your spring is OK. If you have less than 15-20mm, or if it tops out without your weight, you need a stiffer rate spring. More than that, and you need a softer rate spring. Yes, you read that right. No, I didn't mean the other way around.
You will not be able to properly adjust the wrong spring for both race sag and static sag.
This will help almost everyone select the correct spring rate for their weight. If you are Ty Davis (very stiff springs) or Ricky Carmichael (very soft springs), or if you are a jumper, you may want to customize. Otherwise, this will work. It will also give you a wide range of adjustment on your damping settings, whereas the wrong spring rate causes you to compensate with weird damping settings.
Posted March 18, 2005 - 10:40 AM
Posted March 20, 2005 - 04:59 PM
Dan didn't watch the video. It explained all that in there.
LOL. I didn't watch THIS video, but I've done it so many times now I can almost do it in my sleep.
Just wanted to give 'em a quick start guide.