Author Topic: Help Identifying a Fork Please  (Read 8514 times)

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Offline umberto

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Help Identifying a Fork Please
« on: May 15, 2015, 08:35:49 AM »
So my beloved Hybrid needs a set of fork seals, so I called Pro Circuit to order some.  The seller told me that the bike was equipped with A Kit suspension.  I was always concerned that the forks didn't have special triple clamps, like other A Kit stuff does.  When I bought the bike, I called Pro Circuit to make sure the forks were correct, and they said that they sounded correct from my description.  I also found this picture of a similar set of forks that the guy said were A Kit.  They are identical to my forks and shock:



I read somewhere that the new A Kit stuff is 49 mm lowers, so I measured mine to see what diameter they were.  The digital calipers said 46.5 mm, which is smaller than the factory forks I have.  So I searched Pro Circuit 46 mm Forks and a picture of a set that looked similar to mine, but not the same.  Finally decided to call Pro Circuit, because I needed to order the fork seals.  I spoke with a younger kid there, and he indicated that the forks were not A Kit, because they only make 49 mm sets.  He asked me to send him pics, but I have not heard back yet.  In the interim I called Enzo, MB1 and several other places to see if they knew what they were.  A guy at Enzo said that they he thought they were Showa and that Pro Circuit had been making them a long time and that they may be a pretty old set (which is what I originally thought).  My gut tells me they are either Showa A Kit and the kid is not familiar with the older stuff, or they are Kayaba.  I know they are not any kind of modified stock fork, because the seller indicated that the internals looked different than anything he had ever seen.  Is there anyone out there that is familiar with these mystery forks?

The Cap:


The Fork Body (notice the deep gold, which doesn't look like my other factory forks):


Lower Leg:


Lugs:

« Last Edit: January 06, 2018, 01:55:18 AM by umberto »
Perhaps I have a dirt bike addiction?

03 KX 250/88 KX 525/2017 KX250F - Goliath
17 KX250F/04 KX250
04 KX 250 - Lunchbox's Bike
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Offline KXDINO

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Re: Help Identifying a Fork Please
« Reply #1 on: May 15, 2015, 09:11:52 AM »
If you cant tell from the out side you need to pull them apart , check bushes etc ,it could have the name on the inner tube up near the top , 46.5 mm tube? , does not sound right .

Offline umberto

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Re: Help Identifying a Fork Please
« Reply #2 on: May 15, 2015, 10:11:48 AM »
I think it's actually a 46 mm.  My caliper is acting up on me.  I tried measuring it again, and it said 46.12 mm.  Maybe it's time for a fresh battery.   :-D
Perhaps I have a dirt bike addiction?

03 KX 250/88 KX 525/2017 KX250F - Goliath
17 KX250F/04 KX250
04 KX 250 - Lunchbox's Bike
05 KX 125/144

Offline KXDINO

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Re: Help Identifying a Fork Please
« Reply #3 on: May 15, 2015, 09:33:47 PM »
That more like it.

Offline umberto

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Re: Help Identifying a Fork Please
« Reply #4 on: May 16, 2015, 03:02:11 AM »
I saw this picture on the PC website.  The fork and shock look very much like what mine do, including finishes and the rear spring color.  The sticker on the fork says, "Pro Circuit KYB".  Perhaps my forks are KYB?



https://www.procircuit.com/suspension.html
« Last Edit: January 06, 2018, 01:55:34 AM by umberto »
Perhaps I have a dirt bike addiction?

03 KX 250/88 KX 525/2017 KX250F - Goliath
17 KX250F/04 KX250
04 KX 250 - Lunchbox's Bike
05 KX 125/144

Offline motopunk

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Re: Help Identifying a Fork Please
« Reply #5 on: May 16, 2015, 09:46:27 AM »
that sounds definetely like the 46mm kayaba fork ...   the european models had the 48mm forks since 02 ... now you can order a set of seals...
« Last Edit: May 16, 2015, 03:28:57 PM by motopunk »
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Offline umberto

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Re: Help Identifying a Fork Please
« Reply #6 on: May 16, 2015, 10:34:12 AM »
What year and make should I order to get a 46mm seal?  All mine are 48 mm.
Perhaps I have a dirt bike addiction?

03 KX 250/88 KX 525/2017 KX250F - Goliath
17 KX250F/04 KX250
04 KX 250 - Lunchbox's Bike
05 KX 125/144

Offline motopunk

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Re: Help Identifying a Fork Please
« Reply #7 on: May 16, 2015, 03:39:54 PM »
now 48mm ??  but why do you wrote you were measuring 46mm´s ??  :?

still kayaba-forks...

best way for you is now, disassemble a fork leg, measure the actual seal and order it with this measurements . this makes sure you will get the right one.  oem or aftermarket, what you like more in durability .. 

big 2 stroke bikes are weapons for real men, who don´t fear death or devil. ;O)
´83 kx250, ´87 kx250 (with 360 big bore), 87 kx500, ´93 kx500 sfc

---  www.der-motopunk.de.tl  ---

Offline k2000x

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Re: Help Identifying a Fork Please
« Reply #8 on: May 17, 2015, 12:14:18 AM »
They are Kyb kit forks from around 97/98 I've got 2 sets they use standard seals 97_01 will fit them great fork

Offline umberto

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Re: Help Identifying a Fork Please
« Reply #9 on: May 17, 2015, 12:26:14 AM »
now 48mm ??  but why do you wrote you were measuring 46mm´s ??  :?

still kayaba-forks...

best way for you is now, disassemble a fork leg, measure the actual seal and order it with this measurements . this makes sure you will get the right one.  oem or aftermarket, what you like more in durability .. 



Sorry, I meant to say that all my other bikes have 48 mm. The forks I need seals for are 46 mm. I just wasn't sure what year bikes had 46 mm forks on them.
Perhaps I have a dirt bike addiction?

03 KX 250/88 KX 525/2017 KX250F - Goliath
17 KX250F/04 KX250
04 KX 250 - Lunchbox's Bike
05 KX 125/144

Offline PCsplitfireFreak

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Re: Help Identifying a Fork Please
« Reply #10 on: August 26, 2015, 01:04:15 PM »
I think it's actually a 46 mm.  My caliper is acting up on me.  I tried measuring it again, and it said 46.12 mm.  Maybe it's time for a fresh battery.   :-D

hay man what you have is kayaba semi works kited forks. and they are 46mm also they should have stock internals. the inner fork tube is DLC/stock, lugs are hard anodized and the upper fork tube is a one piece tube. also the blue caps are just pro circuit fork caps they sold at onetime for 46mm kyb forks kx/yz

I have some kyb  semi works forks for a 1998 kx