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Old 05-24-2012, 07:18 AM   #1
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KX85 front end on crf100

Ok, I got the KX85 front end and am having the suspension set up as close as possible for my weight. I am having race tech gold emulators(valves) and springs put in it. My question is would it be better to have the forks cut down a bit or leave them their present length and put an after market rear shock and link in to kind of keep the bikes geometry? If I have it cut down, how much should I have cut off?
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Old 05-24-2012, 10:04 AM   #2
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well actually it already had the emulators in it, I am just having the springs changed out....
I am now thinking not to cut them down... either put a spacer on the handle bars and raise the forks up... or raise them up more and put clipons ...
if I leave them alone, I can put them back on the kx later if I want to...and either move the 100 motor over or sleeve down the 85 motor... leave myself some options, more ways to spend money...
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Old 05-24-2012, 10:22 AM   #3
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a aftermarket shock isnt going to lift the rear and even with the tk racing link its not going to help. there not enough room to drop the forks in the triples enough either

the forks need to be shortened
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Old 05-24-2012, 10:34 AM   #4
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Obed, I'm not just gonna drop springs in this dude. The valving has to be tuned for you, and a couple other items to make this thing handle the way you want. And don't worry about the geometry, I'll take care of it!
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Old 05-24-2012, 11:06 AM   #5
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yep, patrick just informed me that the forks have cartridges and valves, not emulators... either way I just want disc brakes... everything else is gravy.
What ever the we have to do, we are going to make it work... it is personal now!
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Old 06-12-2012, 04:23 PM   #6
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Obed, have you emailed TK Racing on that steering stem? I'm looking for one and haven't heard back. Hope they're still in business.
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Old 06-12-2012, 04:27 PM   #7
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I received an email on 5-23.. last I heard from him...
he had told me back in the first part of may that he was having supplier and machine problems and that it would be two weeks or so before he could get me a stem and bearings...then on the 23rd his email was about the link...I have not heard from him since and have sent several emails telling him my forks were done and i needed the stem... no answer... it is making me concerned... I am going to start looking for another source, but I have no idea where to start...
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Old 06-12-2012, 04:27 PM   #8
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Quote:
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Obed, have you emailed TK Racing on that steering stem? I'm looking for one and haven't heard back. Hope they're still in business.
Whatcha going to do with the yz front?
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Old 06-12-2012, 04:34 PM   #9
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I'm keeping the main bike together for now. Got an extra XR frame laying around that I'll try to build up for next year as time and money permit.
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Old 06-12-2012, 04:35 PM   #10
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And that sucks Obed. Whole reason I bought this front end.
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Old 06-12-2012, 04:38 PM   #11
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Have one made. I havent seen the kx85 stem but I am sure all it needs is to be turned down/shorten to fit in the xr100 neck.
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Old 06-12-2012, 04:44 PM   #12
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I'll have to test fit it this evening and see what it needs.

I talked to the guys at

http://www.procyclesinc.com/

They make a stem but it only works on CR85 forks.
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Old 06-12-2012, 05:49 PM   #13
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I used a small machine shop, Harold's Machine, in Richmond. They took my crf100 lower triple and stem, and a yz80 lower and stem. With welding up to lengthen the crf stem, relocating it to the yz triple, and about 3-4 other machining operations the YZ / crf stem and aftermarket bbr upper and lower triples fits perfectly on my crf using crf bearings and races. I can swap a crf front end back on in minutes. Cost me $160.00
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Old 06-13-2012, 06:26 PM   #14
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Harolds is good. They do motor work as well.
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Old 06-13-2012, 07:53 PM   #15
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get with harold's, Im sure they can do and and do it right
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Old 06-13-2012, 08:46 PM   #16
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Sounds like there are options to get the KX conversion stems made. I found a cheap CR80 rolling chassis today and since I'm not in a hurry I think I may just punt and start over by modifying that to take the XR100 engine.

Would anybody be interested in this KX85 front end? It's ready to go if you get the stem/bearing thing sorted out. 17 X 2.5" Excel wheel, new seals, heavy duty springs, front master cylinder, 270mm EBC rotor and caliper relocator. I paid $650 for it with shipping last week which sounds like a lot until you start pricing out all the pieces. I'd be willing to take a little hit on the price though.

photome

photo2aa
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Old 06-13-2012, 08:54 PM   #17
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Did the owner of that cr80 chassis also have a kx85 chassis too?
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Old 06-13-2012, 08:58 PM   #18
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No just a random CR80 chassis and a bunch of old office furniture.
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Old 06-13-2012, 09:11 PM   #19
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Gotcha. I need to follow up on my lead for a cr80 roller.
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Old 06-14-2012, 04:07 PM   #20
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i just got an email from TK, he said he expects it to be the end of july before he has any stems and bearings available....I can wait. I will just run the Denton july race as is and then see if it is august or september before i race with the new front end.
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