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NXA Front fork info


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racer38
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NXA Front fork info

Fri Nov 07, 2008 2:16 pm » Post: #1 » Download Post

Probably one aimed at Charles really, but does anyone have a 2001+ RS250 manual that they wouldn't mind scanning the forks & shock set-up
/maintenance pages for me??

Also any idea of the spring rates and oil weights?

Thanks in advance........
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cgallant
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Fri Nov 07, 2008 5:08 pm » Post: #2 » Download Post

let me put those pages together for you (already have them scanned in). Should have them available for you this weekend to download (don't have them with me here at work).
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racer38
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Fri Nov 07, 2008 5:13 pm » Post: #3 » Download Post

Thanks loads Charles. Whenever you have a free moment will be great.

cheers, Tom
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cgallant
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Fri Nov 07, 2008 7:26 pm » Post: #4 » Download Post

Here is the setup info for the 2001 RS250
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racer38
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Sat Nov 08, 2008 12:43 am » Post: #5 » Download Post

Charles, that was exactly what I was looking for, many, many thanks. The trouble shooter at the end willcome in usefull. I did notice that the fork oil is 5wt where as the earlier NF5 stuff is 10wt. The NF5 springs are softer as well.

I have a set of RC51 forks I'd like to fit to an NSR I have. The forks look very similar to the NXA ones and was interested to see what the set up manual said about both the specs and how the are taken apart.

Might try some lighter springs first as the RC51 appears to have 0.85 kgf/mm fitted and then try lighter oil. Reckon 7.5wt is worth a go as the 5wt might be to thin to work with the std valving. If it's stillhopeless I'll send em off for revalving.

Just wanted to try and save myself £250ish.

Thanks Charles
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Andy
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Sat Nov 08, 2008 2:51 pm » Post: #6 » Download Post

I noticed the the 92 USD forks were considerably heavier sprung than the 91 RWU forks as well. That must make the NX5 forks bloody stiff, as the 92 NF5 forks are perfect on the heavy MC21 with most of the adjustment backed right off! Shocked

Of course, within reason though, a heavier spring and lighter oil should be better as the oil is easier to "push" through the galleries in the damper system and will consequently be more efficent, but judging by how well the NF5 forks work on mine, higher rate springs on a bike that probably weighs over 30kg less must make it a bit skittish!
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andreb

 
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Fri Nov 21, 2008 7:19 pm » Post: #7 » Download Post

cgallant wrote:Here is the setup info for the 2001 RS250


Thanks Chaz, I am planning on upgrading to the 2001 forks on my '98 RS so this will help me as well.

Thanks,
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