Author |
Message |
Whitj
| Posted on Friday, June 11, 2010 - 02:06 pm: |
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Anyone know the proper position that the 07 spring should be installed? The picture below looks like the tightly wound portion of the spring coils goes in first or to the bottom of the the tubes closest to the ground. Feedback anyone? I what to do the upgrade this weekend. Thanks for the input. http://www.badweatherbikers.com/buell/messages/142 838/442538.html?1236474150 Look at: "Now you can insert the springs:" |
Glenn
| Posted on Friday, June 11, 2010 - 02:32 pm: |
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The spring will work the same whether the tighter would part is on the bottom or top. The tighter would part is heavier and commonly put in first so the heavier part is closer to the wheel axle/ground.. |
Glenn
| Posted on Friday, June 11, 2010 - 02:42 pm: |
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Also look at this post for the correct fluid level to use with the 2007 springs. http://www.badweatherbikers.com/cgibin/discus/show .cgi?tpc=142838&post=741654#POST741654 |
Whitj
| Posted on Saturday, June 12, 2010 - 04:43 pm: |
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Glenn Thanks for the insight. That is what makes this page such a pleasure to be part of. All the helpful people. Thanks again |
Glenn
| Posted on Saturday, June 12, 2010 - 06:46 pm: |
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You're very welcome! |
Ratbuell
| Posted on Sunday, June 13, 2010 - 11:04 am: |
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I think there *is* a right and wrong way to put them in...I had mine done at my 10k service (they were in the forks anyway) so not sure if they go loose-coils up or down...but I'm pretty sure it does matter. It's all part of the "progressive" aspect - one part of the spring has to compress first, then *progress* to the other section/other spring rate, in order to get the progressive damping feel. And yes, make sure to use the '07 fluid levels. |
Tootal
| Posted on Sunday, June 13, 2010 - 12:14 pm: |
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I put them in tight coils first because in my sick twisted head, the wheel is moving toward the spring so if you have the forks using the lighter, tighter coiled, springs first as the harder end just sits there and waits for a heavier hit in order to go to work. In other words the busier end should be closer to the input. Now having said that, since the spring is under pressure at all times it doesn't know where the input is coming from it just squeezes together with it's weakest coils going first so it doesn't matter which way it goes. I think the center of gravity argument might be the better answer although you would need a machine to tell the difference. A good question more likely suited to someone engineering at Progressive Suspension. |
Garrcano
| Posted on Sunday, June 13, 2010 - 02:34 pm: |
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OK, and what does the 2007 Service Handbook say? P.D. I only have a 2006 SHB. So maybe it's interesting someone with a 2007 book can put some light in. |
Tootal
| Posted on Sunday, June 13, 2010 - 03:17 pm: |
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I tried to go to Progressive Suspensions website but they must be having problems as it would not come up. I researched some other bike forums and found one company that says to put their springs in with the tight coils up. I then found a guy putting progressives in his KLR. They were Progressive's springs and he said the instructions say it doesn't matter which way as long as they are the same on both sides. I would say that makes the most sense. |
Husky
| Posted on Sunday, June 13, 2010 - 06:13 pm: |
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Actually, you want to maintain the minimum of un sprung weight so the loose coils should in first (closest to the front axle). But I doubt we would be able to sense the difference........ husky |