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GS250T Fork Measurement

solarae

solarae

Forum Apprentice
Hi Folks, can anyone else tell me what you get for a measurement from the bottom of the lower triple to the top of the dust cap on a GS250T. I'm getting 5 3/8". Went through a sticktion problem, now I'm just trying to make sure it's gone. Thanks bunches!
 
With the bike sitting straight up with no stands I measured 5 1/4 inches from dust boot to the bottom of the lower triple.
 
That's not a good way to determine stiction. You're depending on the other measurement to be from a bike thats forks are in great shape, with the springs, oil height, oil weight and fork height in the triples all identical to yours.
Read this article:

http://sonicsprings.com/catalog/setting_sag_street_tech_article.php

In the second paragraph is a discussion of two different measurements. The difference between them is a measure of stiction.
 
Last edited:
Rich, maybe I used the term "stiction" wrong. First of all, we are talking about a little old bike with the most simple and rudimentary forks you can imagine. I don't think anybody usually modifies them. Mine sat for a long time and after bringing it back to life and riding it some, it seemed like the forks were not easily rebounding. It found some black residue, presumably from the old seals on the inner fork leg. I had only made sure that the fork oil was at the right level previously and since they weren't leaking, rode it. Anyway, after doing a proper seal and oil replacement along with making sure all the bolts were torqued properly and in the right sequence I just wanted to make sure it was not still sticky. I'm a short, light rider so it's a little difficult for me to pump the front end. I did find that if I squat in front of the bike and pull down on the bars, I can get the fork springs to compress and rebound.
Thank you though for the link. I used that method to set the sag on my SV.
 
Obviously, you haven't worked on a lot of old bikes. :)

The "creativity" that you'll see evidenced in a bike that's passed through many owners can be quite astonishing. ��

More seriously, you're correct in what stiction is. If you do the up and down measurements carefully that can give you a lot of useful information.
 
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