OzVMX Forum
Clubroom => Bike Talk => Topic started by: jimson on September 07, 2008, 06:07:20 pm
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i've got a pair of forks here don't know what they are off i'll put some pictures up and see what you experts have got to offer :-\ the top is 34mm and the fork shaft is 36 mm (http://i246.photobucket.com/albums/gg99/Tombailey18/100_1569.jpg)
(http://i246.photobucket.com/albums/gg99/Tombailey18/100_1570.jpg)
(http://i246.photobucket.com/albums/gg99/Tombailey18/100_1571.jpg)
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rm a 125 maybe what you doing with them
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Interesting!! The banjo bolts in the top tells me they may have had a pressure equaliser type modification performed, the bottoms look like Suzuki but than again they could be Yamaha, Honda or Kawasaki. My best guess is.... Yamaha mid 70's, oh it's all too hard..
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i don't think they're yamaha.
i don't recall any models having the oil drain at the front of the fork leg, most were on the side and the brake plate lug & dust seals don't look yamaha to me either. or the top of the staunchions.
colours right though... ;D
but hey, ive been wrong before...
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74 ,75, 76 KX 250 But the brake stay doesn't look right ???
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Hey TM, how's the leg?
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Jimson, they look like early XT500 forks to me ;)
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Hey TM, how's the leg?
Gidday peter :) its coming along thanks mate ;) i put a bit of an update on the original thread :)
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I don't think there yamaha the allan key in the bottom is a different size than the other yammie forks I have :-\
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Jimson
I tho't these maybe mid70s KX, but they're not 75/76. They had the oildrain screws on the outside of the leg, not behind as above. They maybe 74KX which were diff. I tho't both had axle dia of about 17mm (for sleeved nuts) on both sliders. I also tho't both KX models had diff-looking castings at the axle than shown in the pics above. The ones above look more Yam-ish to me.
My hunch would be XT/TT500 as Doc says, but I don't know if they were 34mm at the top. I do know the Yam tubes were distinctive at the bottom (inside the sliders) if you feel like pulling one apart & posting a pic.
I'm
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Hmmm,
They don't appear to be TT500 forks from the pics I checked. ???
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John I have no idea what size the XT forks are, I was thinking they were from the first '76 model. The taper at the top had me thinking this but I think the later models had slightly different forks as they had fork boots fitted stock. I didn't think the taper went quite so far down the staunchion so I really don't know, they aren't Suzuki though ;) Axle size may give another clue :-\ where you been shopping to find such critters Jimson??
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i don't think they're XT or TT forks.
early 76 model XT/TT were 36mm with no taper at the top and the brake lug was more chunky than in these pics.
interesting but...
so you could probably use a YZ125x {36mm} bottom clamp with any early DT/YZ/MX {34mm} top clamp.
the XT clamps are wider than the DT/YZ/MX so it wouldn't work with them.
or just post them to Vandy... ;D
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Yes, as far as I could tell, early XT/TT500 forks were 36mm to the top; later ones seem to be reduced dia between the triples, but 36dia again at the top. Ones I looked at were also diff to the pics above at the boss where the axle attaches.
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i agree, they are not any XT or TT 500
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How about Can Am? I know these are not off a 79 or 80 model but Can Am used an air fork set up like this with banjo bolts. Maybe they are from a mid 70’s Can Am as the later ones i have pictures of are for the leading axle forks and they have the banjo bolts in the caps.
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Can-Am used Betor and then Marzocci forks and these are definitely not from either of those factories. My guess is that they're from a Yamaha but I'm not putting my house on it.
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Dont put your house on that Mark . I remember doing a pair like this and I think they where english.
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This is good I've had these forks for about 4 months hoping they where pr75 and usable I'll clean them up on Saturday and take another pic. If they are english Walter what brand and year are they :) jimson
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Thats a few moons ago , I did them . I remember them because it was hard to blend in the chroming .
I think they where of a Norton. I will try to look it up when I get back to Australia.
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Thanks Walter ;D you never know you might have another pair to rebuild.jimson
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I reckon they're kayaba forks from a jap bike. They are very similar to my RH250 forks.
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the Can Am forks i have seen with banjo bolts in the top caps like these ones were marzocchis but leading axles
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I think I could categorically say they are not canam & not english. Can am ran only 35mm forks in straight lforks (axle on bottom of slider). Likewise the english. Canam never ran 36mm forks & I'd be nearly as certain about the british.
Seems to me theres little/no doubt they are Jap; kayaba not showa (again, I'm fairly sure honda/showa never ran 36mm forks)
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An interesting riddle :).
I've seen forks 'waisted' between the triples but never the top section a different dia. Strange engineering me thinks, for a weight savings of..... ??? ::) Are you sure both the mechining and the banjo's are not home modifications.
Is the visiable marks at the change in dia where the lower triples clamped?
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G,
Its not uncommon on Jap forks. I think it simply for ease of removal.
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okies, not XT then how 'bout Hodaka 250 Thunderpooch? :-\ Darcy, are you lurking? can you give us a ya or nay on the Hoddy? ;)
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Doc,
I think they were 34mm forks not 36mm
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Early KX?