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Old 12-11-2007, 10:55 AM   #21
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If the whole idea really takes off like many are hoping it does, then commercially available parts should be readily available from companies like Vortex, Woodcraft, etc etc.

I would LOVE to put one of these together for myself, I've been fantasizing about them since I saw the article in Cycle World a month or two back.
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Old 12-11-2007, 11:37 AM   #22
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Quote:
Originally Posted by hotnanas View Post

I am curious, why couldn't the stock suspension work?
Regarding the stem, you don't have to knock it out- the best thing (and most reliable) is to get a bearing set that fits the new dimensions. Custom bearing shops (like Houston Bearing) will have bearings of all id/ od in stock. That's how I have done all of my swaps after I had the first one "knocked out" and welded the new on in. The biggest problem with removing a stem and welding in a new stem is that 99% of the time, the stem/ triple clamp are dissimilar metals. Welding them is near impossible, and when you do, it seldom holds.

Stock suspension would work fine on the front end replacement. Forks that may be undersprung for the bike they came off of would be likely perfect for the lighter chassis bike.
The shock, however, would have to be changed because the dirt bike shock is not designed for that type of riding (position or use). Not to mention that the swingarm angle would not work with that shock. The dogbones and shock almost have to be changed to get the suspension right.

I still think that the swingarm angle, no matter how it's set up, will contribute to excess tire wear.
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Old 12-11-2007, 11:42 AM   #23
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..

Last edited by hotnanas; 12-11-2007 at 11:46 AM. Reason: i think RSD used a 2003 CRF450...hint hint
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Old 12-11-2007, 11:45 AM   #24
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From what I've gathered the 03-06 cbr600rr front end will slide right into the crf 450 chassis. I've seen front end(with brakes etc..) for around 400.

Then I would only need a rear wheel and brakes. and a shock + adapt the rear sets as previously mentioned

Seems to be cheaper than purchasing motard wheels/hubs/brakes.
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Old 12-11-2007, 11:48 AM   #25
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Personally, I would change the shock.

My personal list of "to do" would be:

DRZ bike
GSXR600 front end
4.5" rear wheel
Ohlins/ Penske/ Fox shock
GP bodywork/ fab a tank cover from a CBR or make my own

Let the good times rooooooooll!
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Old 12-11-2007, 11:49 AM   #26
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Let the good times roll!

Martin, want to trade for a 929?
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Old 12-11-2007, 11:50 AM   #27
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Quote:
Originally Posted by BigComfy View Post
From what I've gathered the 03-06 cbr600rr front end will slide right into the crf 450 chassis. I've seen front end(with brakes etc..) for around 400.

Then I would only need a rear wheel and brakes. and a shock + adapt the rear sets as previously mentioned

Seems to be cheaper than purchasing motard wheels/hubs/brakes.
I'd think so too, although to lace a 17" isn't supposed to be that expensive.

Like I mentioned, Andy did a little research when he was building his, he has a lot of information on that mod.
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Old 12-11-2007, 11:51 AM   #28
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Quote:
Originally Posted by tomLSTD View Post
I'd think so too, although to lace a 17" isn't supposed to be that expensive.

Like I mentioned, Andy did a little research when he was building his, he has a lot of information on that mod.
Laced wheels, hubs +brakes are going to cost much more than fitting a 600 front end from what I can tell.+laced =flexing
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Old 12-11-2007, 11:53 AM   #29
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Quote:
Originally Posted by BigComfy View Post
Laced wheels, hubs +brakes are going to cost much more than fitting a 600 front end from what I can tell.+laced =flexing
I don't know, there are a lot of really fast guys out there running spokes.

I'm with you on preference though, like Andy's bike, he has the CBR wheel on his CRF. I prefer the forged/ cast wheel over spokes too.
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Old 12-11-2007, 12:00 PM   #30
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what rear wheel is he running?
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Old 12-11-2007, 12:06 PM   #31
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If memory serves, he has a laced rear wheel.
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Old 12-11-2007, 12:11 PM   #32
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Quote:
Originally Posted by tomLSTD View Post
If memory serves, he has a laced rear wheel.
here you go don't want you to hurt yourself trying to remember things at your age

Yuliya crf254
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Old 12-11-2007, 12:27 PM   #33
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Those look like CRF forks on there no?
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Old 12-11-2007, 12:28 PM   #34
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Quote:
Originally Posted by hotnanas View Post


Let the good times roll!

Martin, want to trade for a 929?
hummm
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Old 12-11-2007, 01:01 PM   #35
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Yeah, those are the stock forks (CRF, of course the internals are worked over).

And get off my back man, I may be old, but I'm slow!
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Old 12-11-2007, 01:09 PM   #36
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Quote:
Originally Posted by tomLSTD View Post
Yeah, those are the stock forks (CRF, of course the internals are worked over).

And get off my back man, I may be old, but I'm slow!
and yet still faster than me

Those forks look shortened for some reason. Maybe its just the rear that was lowered. I'm heading over there to talk to him in the next few days(I know bring food)
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Old 12-11-2007, 01:46 PM   #37
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For the GP style you have to change the rear shock to get the geometry correct.
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Old 12-11-2007, 04:28 PM   #38
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Quote:
Originally Posted by BigComfy View Post
and yet still faster than me

Those forks look shortened for some reason. Maybe its just the rear that was lowered. I'm heading over there to talk to him in the next few days(I know bring food)
They may be shortened, he's definitely got the tools there to do it.


Moody, you're right, and I think it mostly has to do with the new weight bias being in the front of the bike vs the way the chassis was originally set up for dirty work.
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Old 12-11-2007, 07:41 PM   #39
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what about the tank?? I assume Rollin sand built the tanks or tank covers on the bikes that he built. Has anyone found anything that will work?
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Old 12-11-2007, 07:55 PM   #40
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what about the tank?? I assume Rollin sand built the tanks or tank covers on the bikes that he built. Has anyone found anything that will work?
Rollin' Sand... that's perty funny!

The RSD bikes (Roland Sands) used the stock CRF/ DRZ/ KLX tanks and built covers for them. There's info on that on his site somewhere...

I think starting out with a CBR600RR tank cover would be a great start.
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