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Old 04-18-2009, 07:52 PM   #1
chromepig13
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Default Shortening an inverted Front end?

OK heres where I'm at....I'm wanting to use inverted fork tubes on my build and I need to shorten them about 5 1/2"...after ALOT of searching ...I need help ! Anyone done this or know of someone that can? I can shorten a conventional all day long..but the internals of the inverted perplex me.....I will try adding pix for reference...any help is appreciated





this is the pic of the forks strapped down to where I want them...pretty much 5 1/2" shorter than static length with weight on them
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Old 04-18-2009, 08:42 PM   #2
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Default Re: Shortening an inverted Front end?

what is the fork off of
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Old 04-18-2009, 09:24 PM   #3
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Default Re: Shortening an inverted Front end?

that looks like some sort of enduro or motard type bike. i'd just look for a different front end. most of the GXSR's have short fuckin front ends, and you can find a dumped GXSR any day of the week.

that way, you know that the front end you are using is going to handle as it is supposed to. i mean, isn't that one reason to use an inverted front end? the better handling and shock-absorbing....?
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Old 04-19-2009, 12:21 PM   #4
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Default Re: Shortening an inverted Front end?

front end is off of a Non Brit, American bike (starts with an H, ends in onda crf 450) and i appreciate the "find a different front end" comments but that isnt the question! A gxsr or buell front is too short by about 5 inches,,,,, I'm not looking for THE EASY FIX,,,,I'm looking to use what i've got..........any help?
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Old 04-19-2009, 01:01 PM   #5
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Default Re: Shortening an inverted Front end?

You can either get shorter springs (lighter spring load) and add to the top-out springs in the top of the forks, at the dampers, but that's going to take away from suspension travel.

You *could* slide the fork tubes up in the trees as well.

It doesn't look like you need to drop them much....

Last edited by Dave63; 04-19-2009 at 01:04 PM.
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Old 04-19-2009, 07:23 PM   #6
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Default Re: Shortening an inverted Front end?

think the alloy axle holders screw off the slider tubes, then cut the tubes down ,and re-thread, you'll have to shorten the dampner rod too,
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Old 04-19-2009, 09:11 PM   #7
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Default Re: Shortening an inverted Front end?

I have seen a pair getting done the sliders were removed and cut and threaded again on a lathe same with the dampning rod which I think from memory needed to be brazed back together but it is posible to do them my mate also cut the springs to suite with a die grinder good luck hope it helps I think the hardest thing will be re trheading
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Old 04-20-2009, 04:11 PM   #8
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Default Re: Shortening an inverted Front end?

The desmohog...god that things cool.
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Old 04-20-2009, 07:56 PM   #9
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Default Re: Shortening an inverted Front end?

is that... an OHC harley? i never herd of him, learn me please.
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Old 04-20-2009, 08:06 PM   #10
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Default Re: Shortening an inverted Front end?

you can cut the springs in a CRF fork. it will stiffen them, but it's an acceptable way of lowering the front end since it's no longer on a MX bike and won't affect the handling geometry.

also change the pressure springs (small springs in the top of the fork) from a 2.0 to 1.6. it will allow the fork to ride lower and be a lot less harsh in the initial travel.
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Old 04-21-2009, 08:28 PM   #11
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Default Re: Shortening an inverted Front end?

CRF.....you think I can get 5 1/2 out of doing it that way?
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Old 04-21-2009, 08:53 PM   #12
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Default Re: Shortening an inverted Front end?

Quote:
Originally Posted by chromepig13 View Post
CRF.....you think I can get 5 1/2 out of doing it that way?
yeah. but maybe you should get some .44 springs that way it will be a little softer when you cut them down. and make sure you def change the pressure springs.

both main springs should run about $110.
and pressure springs are about $40 for the pair.
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