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Fork sag on jiffy stand?

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Old 03-06-2012, 11:23 AM
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Default Fork sag on jiffy stand?

I noticed my forks wouldn't even top out on the jiffy stand with stock springs, and even now that I am running Progressives, it still like to come to rest so to speak at something like 1/2" sag with no additional weight on it. I am running the full length spacer they provided, and since the two spacers were a slightly different length I even added a washer or two to equalize them. Just wondered if it was all Sportsters or more an issue with the lowered bikes.

I can top out the springs after it's on the stand and it will pretty well hold it, but not with any force. Annoying. I think I'll be looking for even stiffer rate springs for next riding season.
 
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Old 03-06-2012, 11:29 AM
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Try adding more washers. You have gone too far when you hear a clunk as the forks top out going over something like railway crossings.
 
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Old 03-06-2012, 11:38 AM
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I actually get that light clunk at times with these springs, but can't tell if it's topping out or what. Must be. Thanks.
 
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Old 03-06-2012, 02:34 PM
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What is the sag with you sitting on the bike? That's what matters. Should be 1/4 to 1/3 of your total travel.

Check out here for everything you'll ever want to know, and more, about setting up a Sporty suspension:

http://www.xlforum.net/vbportal/foru...d.php?t=552795
 

Last edited by CanuckSporty; 03-06-2012 at 02:37 PM.
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Old 03-06-2012, 02:42 PM
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I suppose I should correct sag properly, but I think it would require new springs to do it right so I'll live with it for now. I wouldn't think I'd also have to set sag on a riderless bike. lol

It's at least 1/3 right now if not 1/2, but 100% better than stock springs. Gees I'm only 210'ish, but the extended forward controls from mids swap definitely didn't do the forks any favors.
 
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Old 03-06-2012, 03:08 PM
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I think you only have about 4" of travel? Not alot to play with.

I have 5" and have the opposite problem. My sag is less than a 1/4 of travel (about 1") and I weigh 250.

I think I might need to cut my spacers a bit, but I need to ride it a bit more to decide.
 
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Old 03-06-2012, 03:17 PM
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Thinking I should pull the gators up and do some actual measurements. Maybe I'm just too used to upside-down forks with 12" travel.
 
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Old 03-06-2012, 04:00 PM
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Ya it's a good idea to take before and after measurements when making suspension changes. That way you can see what has changed. I'm not sure how you'd do it with gators, but I like to tie a zip tie on the fork tube to see how close I am getting to the end of the travel. You want to get as close as possible without bottoming out.
 
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