SET & ADJUST SAG
In this video we provide an example of how to measure and set your dirt bike sag. Always consult your owners manual and ask for help from a professional when in doubt.
Rider sag is achieved with a series of two measurements;
1. Bike on the stand, measure from a set point on the axle to a marked point on the fender, this is your “measurement A”
2. Then, remove the bike from the stand, with your rider fully geared up and the tank full of gas, have a helper steady the bike from the front ( or lean up against a wall/van/truck..etc) with both feet on the pegs to ensure proper weight distribution, either stand centered, or sit in a normal riding position then re measure from the same marked points. This is “measurement B”
3. Subtract measurement B from “A” and you’ll have your current “rider sag”
Ideally most bikes, depending on what terrain your riding as well as what type of bike will vary from 100mm to 115mm (4″-4.5″)
For example: If you start with a rider sag of 120+mm you’ll need to turn the spring clockwise to put more pre-load on the spring to bring your sag into the 100-115mm range.
Once your rider sag is properly set, now is the time to measure the free sag. The free sag is measured from the same two points with the bike off the stand, without the rider on it. Subtract this measurement from “A” It should be between 25-35mm.
For example: If your at 35+ mm then your spring rate is currently too stiff. Also if your free sag is 25mm or less (completely topped out) then you’ll require a heavier rate/stiffer spring rate to achieve the desired rider sag and free sag numbers.
I know it may be time consuming and a little intimidating but trust me, it is well worth your time and effort to have your bike set up with the proper spring rate for you, it will change your riding and take it up to that next level!
If you’d like a suggestion about the proper rate spring for you and your application please call us at:
928-362-1486
Or to shop for spring for your bike at : http://store.motolabdirtbikes.com