Replacing Forks on 919 - Wrist Twisters
 
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post #1 of 11 Old 05-10-2011, 02:16 PM Thread Starter
Tirone
 
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Replacing Forks on 919

I need some creative ideas on where to go for forks. With OEM's quoted at almost $1,000 for the pair, I figure I could go with performance/aftermarket for the same or less money.

Has anyone retrofitted a new triple clamp and better (inverted?) forks or adopted a fork improvement for this bike?

Sources for OEM stuff or businesses in the mode of parting out wrecked or totalled bikes.

Any suggestions, I'm wanting to put my bike back together by this weekend as I am missing the Need for Speed.

Thank you!

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post #2 of 11 Old 05-10-2011, 03:09 PM
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several options you have. get stock forks reworked with LDH for $650,

do RC51 conversion

swap in F4i forks with reworked springs

leave just stock.

plenty of info on here, just do a search, explore options and see what suits you.

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post #3 of 11 Old 05-10-2011, 03:10 PM
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theres a coupla ways you can go...

1. find 04+ 919 forks these have adjustable rebound and preload
2. find F4i forks... direct bolt on with stock 919 hardware, are exactly like the 04+ 919 forks but add compression adjustment. (you need to use the f4i fender as well)

Beyond that you will need custom triples... a common one to do is the conversion to the RC51 front end.

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post #4 of 11 Old 05-10-2011, 07:54 PM Thread Starter
Tirone
 
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Fork Rebuild/Replace

This input is really great for expediting the project.

It sounds like the F4 "conversion" would be a win for me; I just saw some forks online for the F4 that were inexpensive and I'll guess more F4's were made, (so more were wrecked,) than 919's. I'll just get a fender because my 919 fender is cracked anyway.

Later, with an additional splash of cash, I can do an adjustable rear. I assume the suggestion for the re-spring on the fronts, F4i, is to account for the weight of the bike? and I also need to dial it in to my 190 lb rider weight.

I'm eager to bring this to a conclusion and get the parts.

cheers
Pete

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post #5 of 11 Old 05-10-2011, 08:17 PM
The Cripple
 
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stock f4i fork spring rate is much softer than the stock 919 spring rate, hence the need to drop in new springs, racetec is a good way to go at about $100 for both springs set for your weight. very cheap option.

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post #6 of 11 Old 05-11-2011, 06:26 PM
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i have a 02 with a screw on the top is that normal for that year or have they been replaced already?

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post #7 of 11 Old 05-11-2011, 08:49 PM
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Quote:
Originally Posted by rosebomb View Post
i have a 02 with a screw on the top is that normal for that year or have they been replaced already?
definitely replaced... 02's and 03's came with NO adjustablity up front

now... they might be 04+ 919 forks... or F4i.. both look exactly the same... F4i forks will have a small adjustment screw down by the axle

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post #8 of 11 Old 05-11-2011, 09:32 PM
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so i have a fork leaking will the seal be the same or how do i find out what the fork is from is there a number on it some where

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post #9 of 11 Old 05-11-2011, 09:36 PM
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Quote:
Originally Posted by rosebomb View Post
so i have a fork leaking will the seal be the same or how do i find out what the fork is from is there a number on it some where
seal / bushings should be the same.

just cross reference between the 02/03 and 04+

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post #10 of 11 Old 05-11-2011, 09:50 PM
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ok thanks and how do i start a new post on here

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post #11 of 11 Old 05-11-2011, 09:57 PM
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nevermind i found it

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