Kx or yz forks to replace crf450 psf2 forks?

aedwards07
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aedwards07
Has anyone put a set of Spring kx or yz forks on a crf450? My psf2 forks aren't very good and it seems all the Honda spring forks go for a fortune on eBay. I was thinking they are all 48mm kyb forks, the kx comes with dlc lowers. I just measured a 15 yz125 and the upper clamp dimensions are about 2mm different than my crf. If the kx is a closer fit I would think I can swap lugs and then they should work fine...am I missing anything here?
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adam8781
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adam8781 7/28/2016 10:28pm
7/28/2016 10:28pm
no you can make them work, might take some milling on the clamps but it can be done.
pete24
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pete24 7/29/2016 6:22am
7/29/2016 6:22am
the easiest way is to get a whole yamaha front end and make a steering pin fit in the clamps
metal_miracle 7/29/2016 3:15pm
7/29/2016 3:15pm Edited Date/Time 7/29/2016 3:18pm
From what i have found Kxf 450 07-16 share clamp. Crf 450 09-16 share clamp size. Yzf250/450 10+ share clamp size.

Thats from looking at the applied racing shop, and Thecnical Tuch sayin a yzf would fit my clamps.

I also think
the forks are over priced now. Can allmost get a roller for the price in my country now. For the price shipped here
jaredkeller96
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jaredkeller96 7/29/2016 11:07pm
7/29/2016 11:07pm
why don't you take a set of kxf lowers and internals...completely dissamble your psf. and just use the outer tubes. with the kxf internals and lowers.

The Shop

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ben5020
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ben5020 7/30/2016 4:10am
7/30/2016 4:10am
Try calling Allballs racing and tell them what front end your using and have them match up bearings and races to fit your Honda. I did that with a Vinco pitbike witch are no longer available and also a bbr pitbike that I used an rm85 front end on
Cuarenta_Uno 8/2/2016 1:38pm
8/2/2016 1:38pm
I mount a kawa showa sff air on my crf 450.
I only need change the brake caliper.
macz400
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macz400 8/2/2016 6:45pm
8/2/2016 6:45pm
Cuarenta_Uno wrote:
I mount a kawa showa sff air on my crf 450.
I only need change the brake caliper.
I'm about to do the same thing to a CR250. Could you post pics?
CrGuy2T
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CrGuy2T 8/2/2016 6:45pm
8/2/2016 6:45pm
Cuarenta_Uno wrote:
I mount a kawa showa sff air on my crf 450.
I only need change the brake caliper.
Got any pics?
macz400
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macz400 8/3/2016 7:00pm
8/3/2016 7:00pm
Cuarenta_Uno wrote:
[img]https://p.vitalmx.com/photos/forums/2016/08/03/145762/s1200_image.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2016/08/03/145763/s1200_image.jpg[/img] Sorry for the bad quality. I test today. Its better than kayaba!




Sorry for the bad quality.

I test today. Its better than kayaba!

So what size Honda rotor are you running? What year kawi brake hanger are you running? I know kawi changed the brake hanger in 15.
macz400
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macz400 8/5/2016 4:44am
8/5/2016 4:44am
Yup, your right. 15 kawi 450 forks. Going to put these on my 07 CR250 project bike I'm starting. Gotta get the 15 kawi brake bracket.



adam8781
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adam8781 8/5/2016 10:47pm
8/5/2016 10:47pm
spoke to a guy today witha 15 crf450, the newer yzf forks bolt right in the stock honda clamps, and you use the yamah front wheel.


sff air is shit..... big step the wrong way imo for fork design
FLmxer
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FLmxer 8/7/2016 9:39am
8/7/2016 9:39am
2012 crf250 spring forks on mine. 800 on ebay. Kdubs favorite prodution forks i heard. So much better.
DuroTools
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DuroTools 8/7/2016 8:43pm
8/7/2016 8:43pm
aedwards07 wrote:
Has anyone put a set of Spring kx or yz forks on a crf450? My psf2 forks aren't very good and it seems all the Honda...
Has anyone put a set of Spring kx or yz forks on a crf450? My psf2 forks aren't very good and it seems all the Honda spring forks go for a fortune on eBay. I was thinking they are all 48mm kyb forks, the kx comes with dlc lowers. I just measured a 15 yz125 and the upper clamp dimensions are about 2mm different than my crf. If the kx is a closer fit I would think I can swap lugs and then they should work fine...am I missing anything here?
MXtech makes an internal conversion kit but I think it's like a G.
http://mx-tech.com/mx-works/psf-to-sff/
Came across it the other day by accident

Pit Row

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Slosh 112
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Slosh 112 8/8/2016 12:53am
8/8/2016 12:53am
macz400 wrote:
Yup, your right. 15 kawi 450 forks. Going to put these on my 07 CR250 project bike I'm starting. Gotta get the 15 kawi brake bracket.[img]https://p.vitalmx.com/photos/forums/2016/08/05/145974/s1200_image.jpg[/img]...
Yup, your right. 15 kawi 450 forks. Going to put these on my 07 CR250 project bike I'm starting. Gotta get the 15 kawi brake bracket.



So you can use the Honda Tripple clamp, hub, axle and calliper? Kawi forks and calliper bracket?
macz400
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macz400 8/8/2016 5:15am
8/8/2016 5:15am
macz400 wrote:
Yup, your right. 15 kawi 450 forks. Going to put these on my 07 CR250 project bike I'm starting. Gotta get the 15 kawi brake bracket.[img]https://p.vitalmx.com/photos/forums/2016/08/05/145974/s1200_image.jpg[/img]...
Yup, your right. 15 kawi 450 forks. Going to put these on my 07 CR250 project bike I'm starting. Gotta get the 15 kawi brake bracket.



Slosh 112 wrote:
So you can use the Honda Tripple clamp, hub, axle and calliper? Kawi forks and calliper bracket?
Correct

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