Fork Preload spacers? ***GHETTO**** - Wrist Twisters
 
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post #1 of 14 Old 02-04-2012, 10:36 PM Thread Starter
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Fork Preload spacers? ***GHETTO****

I'm a Bicycle Tech in a Very hight end shops. I work on bikes that cost more than my 9er on a daily basis... Anywho Im the Fox Shox suspension thec, and so that means I'm the "suspension guy" anywho in MTB forks there are preload spacers used quite often to "stiffen" the spring rate ... without swapping springs....


Anyone tried this with the 9er fork?
I cant afford new springs and im sitting in about 1/2 the travel in sag and when i brake it almost bottoms out.

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post #2 of 14 Old 02-04-2012, 10:49 PM
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Uhhhhh, I just shoved 1" schedule 40 PVC spacers into my forks...even WITH an upgrade...

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post #3 of 14 Old 02-04-2012, 11:19 PM
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Get springs to suit your weight. They are around US$100 and well worth saving the $. Pissing around with spacers will only mask the issue and raise your front ride height.

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post #4 of 14 Old 02-04-2012, 11:32 PM Thread Starter
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dude planning a Wedding can't spare $100 , I know that would be the main solution, I just figure this is a quick fix. I ride daily (my only wheels , no cage)


any tips for lifting the front of the bike to unweight the fork so i can open her up?

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post #5 of 14 Old 02-05-2012, 02:59 AM
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Quote:
Originally Posted by GreyHornet919 View Post
dude planning a Wedding can't spare $100 , I know that would be the main solution, I just figure this is a quick fix. I ride daily (my only wheels , no cage)


any tips for lifting the front of the bike to unweight the fork so i can open her up?
Things ive learned: preload affects the ride height but affects the spring stiffness very little.

Propping it up: i went with jacking it up under the headers and split the weight with a thick strap under the steering head/upper triple, suspended from above (ceiling joist, A-frame ladder...get creative).

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post #6 of 14 Old 02-05-2012, 09:56 AM
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Quote:
Originally Posted by GreyHornet919 View Post
I'm a Bicycle Tech in a Very hight end shops. I work on bikes that cost more than my 9er on a daily basis... Anywho Im the Fox Shox suspension thec, and so that means I'm the "suspension guy" anywho in MTB forks there are preload spacers used quite often to "stiffen" the spring rate ... without swapping springs....


Anyone tried this with the 9er fork?
I cant afford new springs and im sitting in about 1/2 the travel in sag and when i brake it almost bottoms out.
More spacer length will only "stiffen" metal springs if the resultant decreased installed height results in some coil binding (or coil stack), otherwise, the only thing that is being changed is the preload force, which is really a form of stored energy.
One can not properly tune a front spring with spacer length, unless the springs are correct to be begin with.
919s have mush springs.
If you can't afford springs, but can make spacers, or spacer washers, try a 6-10 mm addition and see if it helps you re your Rider Sag Height. Ignore Free Sag in such circumstances, and just go by Rider Sag Height.

As for front brake dive on 919s, that is better dealt with by other means.
See the recent "Front Spring Rates" that's also in the Mech & Tech section.

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post #7 of 14 Old 02-05-2012, 02:42 PM
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The existing fork oil will be toast too - so allow more $ for a litre of top quality 10 wt cartridge fork oil.

I'd highly recommend giving up drink, cigarettes, porn, coffee or whatever your daily/weekly vice is to save up for some new springs. The front end will be transformed.

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post #8 of 14 Old 02-05-2012, 04:12 PM
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Screw the dj at the wedding. Lol. When you send the invites ask everyone for their 2 favorite songs. Then you and the wife go through and filter out the shitty ones, add your own, and make a smart playlist if you have an ipod. That way nothing repeats even if at some point in the wedding you want to skip to a certain song. Also have a friend around to make sure its ok. Once you start it you should be good.

Save that money and you can buy springs. Scew the photographer and make a friend do it, then you can get an ohlins =)

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post #9 of 14 Old 02-05-2012, 04:19 PM
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Quote:
Originally Posted by boogunoogun View Post
Screw the dj at the wedding. Lol. When you send the invites ask everyone for their 2 favorite songs. Then you and the wife go through and filter out the shitty ones, add your own, and make a smart playlist if you have an ipod. That way nothing repeats even if at some point in the wedding you want to skip to a certain song. Also have a friend around to make sure its ok. Once you start it you should be good.

Save that money and you can buy springs. Scew the photographer and make a friend do it, then you can get an ohlins =)
pff... just screw the woman all together... money WAY AHEAD!

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post #10 of 14 Old 02-05-2012, 04:42 PM
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Actually the boys above have a point - there is nothing cheap about motorcycling so it would be good to ensure she fully understands this before you get married!

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post #11 of 14 Old 02-05-2012, 05:35 PM Thread Starter
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LOL love the ideas. She totally understands..SHE BOUGHT MY 9er!!!! there is a reason I stick with her. She is a truly great gal.

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post #12 of 14 Old 02-05-2012, 05:48 PM
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^^ Sounds like you'd better not lose her!

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post #13 of 14 Old 02-06-2012, 03:10 PM
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Quote:
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LOL love the ideas. She totally understands..SHE BOUGHT MY 9er!!!! there is a reason I stick with her. She is a truly great gal.
wooo... in that case, disregard my above statement... marry that woman ASAP and please her every night!

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post #14 of 14 Old 02-06-2012, 03:20 PM
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Wait.. she bought your 9er for YOU?! Winning

My classified(s):
Nothing at the moment

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"Security is mostly a superstition, it does not exist in nature: avoiding danger in the long run is no safer than outright being exposed. Life is either a daring adventure or nothing."-Helen Keller
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