new front fork spring sag adjustment
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Outstanding HDF Member
Joined: Oct 2009
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From: Maryland near DC
new front fork spring sag adjustment
background, 2000 sportster hugger...replaced front fork springs, and fork tubes etc. to bring front end up to standard xl height (and added emulators)...all is good except the sag, in order to raise the sag 1 inch do I add 1 inch of shim height to each side (r and l) or 1/2 inch to each side??? I am hoping to only have to do this once.....Also the emulators are well worth the money for those thinking of installing them, I (they) also recommend replacing the stock springs with springs correct for your weight..I did a lot of research on the spring and it is recommended by the people in know not to use progressive wound springs as they make it much more difficult to tune the shocks ....here is some reading on the subject...
https://www.hdforums.com/forum/touri...rk-better.html
https://www.hdforums.com/forum/touri...rk-better.html
You'll need 1" on each side to raise it 1".
You're right about emulators and single rate springs. I did the same mod to my Dyna with Traxxion Dynamics single rate springs and Ricor Intiminators. The effect was dramatic. Good oil makes a difference also.
That said, You're ride height may not be the same as the stock setup because the original dual rate springs sag more prior to the rider's load on the suspension.
I'm sure you know, your sag should be right at 1/3 of the full travel.
I kept playing with the sag until I finally bought adjusters from The Speed Merchant. Once you get the sag close, the adjusters let you fine tune the sag.
You're right about emulators and single rate springs. I did the same mod to my Dyna with Traxxion Dynamics single rate springs and Ricor Intiminators. The effect was dramatic. Good oil makes a difference also.
That said, You're ride height may not be the same as the stock setup because the original dual rate springs sag more prior to the rider's load on the suspension.
I'm sure you know, your sag should be right at 1/3 of the full travel.
I kept playing with the sag until I finally bought adjusters from The Speed Merchant. Once you get the sag close, the adjusters let you fine tune the sag.
Road Warrior
Joined: Jul 2006
Posts: 1,532
Likes: 7
From: Rochester N.Y.
A one inch increase "should" raise it one inch.
If you're near the last 2" at the extended length , you will be fighting against the topout spring under the damper which is usually 2" long on most sportsters.
It should get you very close to what you need though.
Mick
If you're near the last 2" at the extended length , you will be fighting against the topout spring under the damper which is usually 2" long on most sportsters.
It should get you very close to what you need though.
Mick
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Outstanding HDF Member
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From: Maryland near DC
the original springs when uncapped stuck out about an inch (shocks fully extended) the new springs are flush with the top of the fork, and the sag is about the same amount low...I will add an inch and let you know how it goes..
Club Member
Joined: Jun 2007
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From: Bedford UK
Don't confuse Emulators and Intiminators, they are different products. They are both designed to improve damping, but do so in different ways. Frankly I would advise against the Emulators, which I have in my Sporty, and don't feel any benefit from them. However over in Touring, where they mess with suspension much more than in here, the Intiminators get good reviews.
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