Planet Minis

Walsh · 09-29-2009, 07:18 AM

I doing the kx100 fork conversion right now and the KX has the big wheel front wheel on it. I would like to still run my 80 wheels and im wondering what I should do for the front wheel? What wheel should I get to still run the KX disk brake?

Also I have a xr80 swingarm on there right now but I also have the 100 swingarm laying around too. Which swingarm would be better for tight track riding?

Is there anyway I can run disk rear brakes?

What chain size should I run? Sprocket combo? (Tight track riding)

gbunner · 09-29-2009, 01:46 PM

I would stay with the 100 swingarm. Maybe you could get a cr85 swingarm, then you could run the cr85 rear wheel and disc brake setup.

Walsh · 09-29-2009, 04:11 PM

Does the swingarm bolt right up? What is needed for this to work? What shock/linkage would I use?

gman · 09-29-2009, 04:53 PM

The XR 100 and 80 swing arms and linkages will interchange. The 100 swinger is 1" longer.

The CR 85 swinger Isn't even close to bolt on a XR 100. A better choice is the narrower KX 85 swinger It still will require some serious fab work for fitment, major work for the linkage and upper shock mounts.

I see were your go'n with these threads... IMHO you may want to consider building a CR/XR conversion. CR 80/85 rollers can be had in $400-600 rang.

Walsh · 09-29-2009, 05:05 PM

I have a complete 00 kx100. I really don't want to do a conversion. I'm actually not spending a whole lot of money as it is and a conversion is going to take a lot of time and $ trying to find another chassis. I've already looked at trying to put the KX swingarm on and its about an inch wider than the xr. I prolly won't mess with it unless I feel like doing it later on down the road. I could prolly get it to fit but the linkage/shock is where I would have problems.

I was really just more curious to which swingarm is better for tight mx tracks. The xr80 or 100?

Walsh · 09-29-2009, 06:16 PM

Will xr80 sprockets work on a xr100? I would like to run a 420 chain but i'm having a hard time finding 420 sprockets.

waveline · 10-01-2009, 09:30 AM

SPROCKET SPECIALISTS-Sprockets for all makes of bikes.

they fab what you want,

go for a 420 chain, less weight and will do with the power you have.
i recommend also a bbr swingarm, to level the bike and a 19" wheel.
the 17" from a kx85 is to nervous for me.

this is mine xr100 with kx85 forks raced on a local track in belgium

09-29-2009, 07:18 AM	#1 (permalink)
Walsh PM Newbie Join Date: Sep 2009 Location: Olney, Illinois Posts: 29	More questions. I doing the kx100 fork conversion right now and the KX has the big wheel front wheel on it. I would like to still run my 80 wheels and im wondering what I should do for the front wheel? What wheel should I get to still run the KX disk brake? Also I have a xr80 swingarm on there right now but I also have the 100 swingarm laying around too. Which swingarm would be better for tight track riding? Is there anyway I can run disk rear brakes? What chain size should I run? Sprocket combo? (Tight track riding)

09-29-2009, 01:46 PM	#2 (permalink)
gbunner 2nd Gear Member Join Date: Sep 2008 Location: Greensburg, Pa. Posts: 668	Re: More questions. I would stay with the 100 swingarm. Maybe you could get a cr85 swingarm, then you could run the cr85 rear wheel and disc brake setup.

09-29-2009, 04:11 PM	#3 (permalink)
Walsh PM Newbie Join Date: Sep 2009 Location: Olney, Illinois Posts: 29	Re: More questions. Does the swingarm bolt right up? What is needed for this to work? What shock/linkage would I use?

09-29-2009, 04:53 PM	#4 (permalink)
gman 1st Gear Member Join Date: Apr 2008 Location: Pittsfield, Massachusetts Posts: 240	Re: More questions. The XR 100 and 80 swing arms and linkages will interchange. The 100 swinger is 1" longer. The CR 85 swinger Isn't even close to bolt on a XR 100. A better choice is the narrower KX 85 swinger It still will require some serious fab work for fitment, major work for the linkage and upper shock mounts. I see were your go'n with these threads... IMHO you may want to consider building a CR/XR conversion. CR 80/85 rollers can be had in $400-600 rang.

09-29-2009, 05:05 PM	#5 (permalink)
Walsh PM Newbie Join Date: Sep 2009 Location: Olney, Illinois Posts: 29	Re: More questions. I have a complete 00 kx100. I really don't want to do a conversion. I'm actually not spending a whole lot of money as it is and a conversion is going to take a lot of time and $ trying to find another chassis. I've already looked at trying to put the KX swingarm on and its about an inch wider than the xr. I prolly won't mess with it unless I feel like doing it later on down the road. I could prolly get it to fit but the linkage/shock is where I would have problems. I was really just more curious to which swingarm is better for tight mx tracks. The xr80 or 100?

09-29-2009, 06:16 PM	#6 (permalink)
Walsh PM Newbie Join Date: Sep 2009 Location: Olney, Illinois Posts: 29	Re: More questions. Will xr80 sprockets work on a xr100? I would like to run a 420 chain but i'm having a hard time finding 420 sprockets.

10-01-2009, 09:30 AM	#7 (permalink)
waveline PM Newbie Join Date: Jan 2008 Posts: 17	Re: More questions. SPROCKET SPECIALISTS-Sprockets for all makes of bikes. they fab what you want, go for a 420 chain, less weight and will do with the power you have. i recommend also a bbr swingarm, to level the bike and a 19" wheel. the 17" from a kx85 is to nervous for me. this is mine xr100 with kx85 forks raced on a local track in belgium

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