KX Riders
Maintenance & Technical => KX500 Original => Topic started by: a109drvr on April 03, 2006, 04:47:46 AM
-
Newbie here with a new (to me) 2001 KX 500. Does anyone know which year KX125 or 250 top triple is an exact swap for the 2001 KX 500? I want to get a new top triple clamp, preferably the Protaper P-3 http://www.protaper.com/p3uppertripleclamp.html (http://www.protaper.com/p3uppertripleclamp.html). Plenty of fore and aft adjustment and no rubber insert.
I searched and found this post:http://www.kxriders.com/forums/index.php/topic,1809.0.html (http://www.kxriders.com/forums/index.php/topic,1809.0.html)
Timbowe said the 02 KX 250 triple needed shimming, but doesn't say what year his KX 5 was, I assume an '02. hoopty said a stock 01KX250 fit his 01KX500 but I want to be sure before I spend $230-$240 on a triple and bar clamps.
-
TimBowe has an 03-04 500. He will post you a reply. I see him here atleast daily. He is across the ocean.
-
I think it is pretty much all the same till 04 or 05 when the Kx125-250 jumped 2 mm in diameter! That would require some machining to make it fit.
-
You could stick with the stocker and buy just the bar mounts. Then polish it all up and still get the custom look while saving some money.
-
I got the 01 kx250 ProTaper top clamp for mine. When I pulled the original off and looked at the underside of it, Kx250 was stamped on it. So i ordered it and fitted it up. Problem was when the bolts were screwed tight the clamp was not clamping tight. So down to my local engineering supply store and got a sheet of shimming material (metal) and cut up shims to fit around the top of the fork. Wedged the clamp open and fitted it to the forks. Bolted up sweet. Adjustable, solid mount with a high bend Pro taper handle bar. Much better for standing up a bit straighter. Nice mod!
-
You could stick with the stocker and buy just the bar mounts. Then polish it all up and still get the custom look while saving some money.
I bought the Protaper mounts that fit the stock triple along with a CR-High bend bar. Much better than the stock bar that came on the bike, but I want to move the bar farther forward and get rid of the rubber mounts. The mounts I got only have one position, directly over the rubber cones. Not really concerned about the looks. But your'e right, I could polish the upper and lower clamp and have a lighter setup than anything aftermarket. If I can't find a triple with adjustable bar mounts that will fit I will get the aluminum cones to at least get rid of the rubber mounts.
-
Scott's make bar mounts that can be adjusted forward of the mounting posts.
-
Pro Taper top clamp is adjustable fore and aft. Also has 3 different height riser mounts available. My clamp is for a 01/02 kx 250.
-
If you want to get really fancy, Emig Racing makes a full set for the KX500 that are super trick!
-
Thanks for the help. Looked at Scotts, BRP and Emig Racing websites. Well I tried Emig Racing but the site isn't working up right now. I think I'm going to follow Timbowe's lead and get the P-3 Protaper clamp since it has numerous position and height options. Then I'll shim it or file some of the material from the mating surface where the bolts are so they clamp tight.
-
I too looked at the relieving some material from the screw area for a tighter fit. Then decided to go with the shimming idea instead. If material is taken from the clamping area it could lead to an thread alignment issue and weaken the strength of the clamp. The shim has worked a treat and it would be a shame to remove any of the nice black anodising. :mrgreen:
-
O.K is there a way I could shim a top clamp from an 01 kx250 to fit my 87 500? I would need to measure but mine are 43mm or 46mm. What is the new 500's and what is the 01 kx250 measure at. Just thinking out loud.
-
Hughes,
Since your thinking out loud. If you know a machinist they could make you a slip collar to go around the fork tube and inside the clamp. It could have a slit just like the triple clamp allowing it to tighten on the fork tube, or machine a collar that is a press fit (no slit) freeze fork tube heat collar and assemble, but this would not allow for easy removal.
-
I was thinking the same as you. But I think it would not be cost affective for me. That's alot of work for a machine shop to mill and turn down a collar. I may come up with something.
-
I have been following this thread and I can't figure out where this piece goes on the bike? I wish someone would take a pic for me! I have a small machine shop that I am in the process of moving from my store to my home shop and it will be up and running soon. Turning some kind of a collar out of 6060 T6 is a breeze, I can't imagine it taking over 15 minutes. If you wanted to cut a slit and drill and tap a bolt in it my take up to a hour.
Alan :-D
-
Alan, The top clamp is the what your handle bars are connected to. The front forks slide up through them. Let me know when you get that shop up and running I would like get those collars turned. Thanks.
-
Alan, The top clamp is the what your handle bars are connected to. The front forks slide up through them. Let me know when you get that shop up and running I would like get those collars turned. Thanks.
Im am still not clear! Where do these collars go? :?
-
The collars would need to go between my forks and the top clamp. The inside diameter of the newer clamps is larger than mine. My front forks are about 43 or 46 mm in diameter(where they slide through the clamp). Newer forks like yours are larger in diameter more like 48 or even 50 mm.
-
The collars would need to go between my forks and the top clamp. The inside diameter of the newer clamps is larger than mine. My front forks are about 43 or 46 mm in diameter(where they slide through the clamp). Newer forks like yours are larger in diameter more like 48 or even 50 mm.
BRB I am going to messure my 01!
-
All I need to do is measure my forks diameter and than I need to measure the newer 250's forks and than make a collar that will make up the differance. Then I can order a new top clamp that would let new run different bar heights and positions. :-o
-
My 01 forks are 54 mm where they go through the top of the triple clamp. Paul told me that them jumped up 2 mm in 04-05 on the KX250, but it would take some machining to make them fit.
Here are some pic's of mine, tell me what it is you want to accomplish?
-
Alan, I want to use a top clamp from a kx250 like timbowe did. This would let me move the bars up and down and forward or aft. I will need a collar that would take up the space between my 43 mm forks and the 54-56 mm clamps.
-
Are you sure your forks are 43 mm! I will check my forks on my 94 at work today and get back with you! I do I have a spare set of complete trip clamps also and I think the will fit an 01.
-
I'm going to measure them tonight. They are 43 or 46.
-
I'm going to measure them tonight. They are 43 or 46.
My 94 is 52 mm and my 01 is 54 mm and thr 04 250 must be 56 mm un less I am mesuring them in the wrong place. OK I figured out the problem! I was mesuring the top trip clamp oppening not the working part of the fork tube. So my 94 is 43 mm and my 01 must be 46 mm.
-
Alan, You need to measure the end of the fork that slides up into the clamps. Remmber I have the old school forks not the inverted kind.
Rockymountainatv/mx.com has top clamps for 2003 and newer kx250's for $99.99. This top clamp has adjusted forward and aft setting and you can get different bar risers mounts for only 30.00 ranging from 35mm to 55mm of height. I may order a set and then measure my forks and then measure the inside dia. of the new clamp and then have collars made. But I need to recover from the two hundred dollars I just spent on springs.
http://www.rockymountainatv.com/viewLargerImage.do?prodImage=L/LON_05_ADJ_TRI_CLA.JPG
-
Ok now that we are on the same page! If you wanted to run smaller dia forks in a newer triple clamp it would be very easy to turn spacers an then slit them so they would grip the fork when you tightened up the triple tree clamps.
Alan
-
That's what I want to do. I have a hard time typing out what I want to say. I'm buying one of those clamps from rockymoutain here shortly after I recover from the springs I just bought. Allen if you are any good :-D with that machine shop I might put you to work :-D
-
That's what I want to do. I have a hard time typing out what I want to say. I'm buying one of those clamps from rockymoutain here shortly after I recover from the springs I just bought. Allen if you are any good :-D with that machine shop I might put you to work :-D
No problem it would be a very simple project!
-
Do you have material? Looks like these collars would need to be made out of solid alumn stock that is round in shape.
-
Do you have material? Looks like these collars would need to be made out of solid alumn stock that is round in shape.
6061 T6 is 1/2 hard aircraft Aluminum and I have a bunch of it around! It is the stuff everyone calls Billet this and billet that drives me nuts is simply an Aluminum extrusion and it comes in all kinds of sizes, from plate to rod and block. It is wonderful stuff to work with right up their with red brass silicon bronze and delron!
-
Measured my forks they are 43mm. Got that machine shop running? Maybe next month or so I can buy a top clamp and the project must begin.
-
Measured my forks they are 43mm. Got that machine shop running? Maybe next month or so I can buy a top clamp and the project must begin.
It will be a month to 6 weeks till I get my lathe and mill moved and fired up!
-
does any know if the 04 triple clamps for a 250 will fit on a k5. I was thinking of replacing the whole set. I bought a set of forks off a 04 250 (mine are scratched down one of the tubes), and was thinking of buying brp clamps for that model 250, with the taper bars.
-
I have been told that the stem bolt is smaller in dia. I do not have any personal experience trying to make it work. I am sure there is a way to retro it. I would be really nice if we can work it out and write it up!
Alan :-D