929/954 Front End Swap w 919? - Wrist Twisters
 
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post #1 of 5 Old 07-14-2008, 01:21 PM Thread Starter
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929/954 Front End Swap w 919?

Can it be done? How easily or difficult would it be, and what's involved?

I got a local guy selling a 929 front end for 3-fiddy, so..... hmmmm

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post #2 of 5 Old 07-14-2008, 01:46 PM
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Quote:
Originally Posted by Rob919 View Post
Can it be done? How easily or difficult would it be, and what's involved?

I got a local guy selling a 929 front end for 3-fiddy, so..... hmmmm
Right off the bat. . .the 929/954 forks are too short for the 919. BUT, people in this forum have done it and they can chime-in with their input about their quicker steering 9ers.

To transplant the 929/954 forks you'll need a new upper. . .a custom triple or an RC51 drilled for handlebar mounts. Then, you need to remove the 919 steerer from its lower triple (not EZ, best leave it to a machinist who knows what they're doing) and pressed into the 929/954 lower. After these mods, the forks can literally be mounted on your 9er. Then you'll have to figure out your mounting of headlight and gauges. . .many different ways to go here.

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post #3 of 5 Old 07-14-2008, 01:56 PM
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I can let you have a pair of 954 legs and a lower triple for $300 but you probably wouldn't like the ride with forks that are 1.5" too short. Track down a good set of RC51 legs, you can still use the 929/954 lower triple with a few mods.
Dan

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post #4 of 5 Old 07-15-2008, 01:59 PM Thread Starter
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Thanks for the replies. Nah, I don't think I wanna mess with shorter forks, so I'm gonna fuggedaboutit.

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post #5 of 5 Old 07-15-2008, 04:11 PM
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Quote:
Originally Posted by Rob919 View Post
Thanks for the replies. Nah, I don't think I wanna mess with shorter forks, so I'm gonna fuggedaboutit.
Don't give up so easily. if you were going to have an upper triple clamp made anyway, there's no reason it can't be made with a 38 mm (or however much you want) downward offset to compensate for the shorter forks. The loads under heavy braking will be slightly higher due to the shorter engagement, but this can be compensated for in the design of the upper triple webs and cross bracing buttresses. No sweat at all. I've done similar types of adaptations before on a manual mill with an XY DRO, but with an NC mill it can be made as ornate and detailed as you want.

If you want, either xrmikey or I can CAD a design that could be fed directly into a CNC mill and produce an incredible part out of a billet of 6061-T6, possibly with your name and a WT logo incorporated onto the surface somewhere. All we would need is accurate width, offset, and a few other dimensions (which I can give specific procedures for obtaining) and it's all designing with abandon from there.

Rob

If it has already been done, it is safe to assume it is possible to do it.
On the other hand, if it has not been done never assume it is impossible to do it.
------- Rob --------
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