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Old 04-03-10, 05:19 PM   #291
-Ralph-
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Default Re: rear shock change

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Originally Posted by Liam9188 View Post
I didn't, no. I did think that it would be un-necessary with the stiffer springs. There was about a 8-10mm difference though, so it is significant
Mine were K-Tech springs, there was 20mm difference. I would expect the fork assembly to be 20mm shorter because of the shorter spring, but sag a bit less because of the stiffer spring, so compensating a bit. Measuring the sag against what it should be for the bike however, will tell you if you need a longer spacer. Icanhopit helped me with mine and gave me a sheet of paper with the acceptable sag, etc. I can post up what it says on here if you need it.

Last edited by -Ralph-; 04-03-10 at 05:26 PM.
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Old 04-03-10, 05:45 PM   #292
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Default Re: rear shock change

cheers. I'm gonna set it up properly this weekend, make sure i have the correct air gap etc. so I'll do it then
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Old 05-03-10, 03:21 AM   #293
zadar
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Default Re: rear shock change

You can't just put 20mm shorter springs without putting new longer spacer in.
You should have some initial preload on spring when forks are fully extended (about 10mm is norm), otherwise you will have forks not working properly on extension.
Yes, stiffer spring will sag less under bike weight all else equal but spring is there for you, not bike alone. You still need initial preload on it.
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Old 05-03-10, 02:50 PM   #294
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Default Re: rear shock change

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Originally Posted by zadar View Post
You can't just put 20mm shorter springs without putting new longer spacer in.
You should have some initial preload on spring when forks are fully extended (about 10mm is norm), otherwise you will have forks not working properly on extension.
Yes, stiffer spring will sag less under bike weight all else equal but spring is there for you, not bike alone. You still need initial preload on it.
OK, thanks. I'll have to get some tubing and make some spacers then.

Anybody recommend a pipe to use that they found in B&Q or some such place? Without having to buy two bloody metres of it!
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Old 05-03-10, 03:30 PM   #295
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Default Re: rear shock change

if your just on about plastic plumbing pipe I know our local plumb centre sell it by the foot.
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Old 05-03-10, 03:50 PM   #296
-Ralph-
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Default Re: rear shock change

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Originally Posted by leedsmatt7 View Post
if your just on about plastic plumbing pipe I know our local plumb centre sell it by the foot.
OK, thanks. I look and see if I have a Plumb Centre. Or if Screwfix do the same. I don't think I've ever seen short lengths in B&Q but I could be wrong.
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Old 05-03-10, 04:07 PM   #297
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Na I dont think you are, its about 1.8m min from B&Q only benifit from there is the staff know nothing so you can swap the labels over and get a 3m length for 1.8 money....
Its not stealing, its been clever - honest officer.
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Old 05-03-10, 05:36 PM   #298
Icanopit
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Default Re: rear shock change

Hi Colin, you may remember that I had no tube at the time and left the top caps loose? however I now have ample that I purchased to do my own, with a very good wall thickness larger than standard.
JOHN
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Old 05-03-10, 05:39 PM   #299
yorkie_chris
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Default Re: rear shock change

I hope you don't mean you'd ride the bike like that
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Old 05-03-10, 06:36 PM   #300
-Ralph-
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Default Re: rear shock change

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Originally Posted by Icanopit View Post
Hi Colin, you may remember that I had no tube at the time and left the top caps loose? however I now have ample that I purchased to do my own, with a very good wall thickness larger than standard.
JOHN
I may just need to pay you a visit over the weekend!

There a sealed bottle here that's been sealed for far too long anyway, if I don't get it out of my sight soon, it's not going to be sealed for much longer!
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