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Grafting a 08 GSXR fnt. end on a 87 NSR 250-How does it....


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456igor

 
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Grafting a 08 GSXR fnt. end on a 87 NSR 250-How does it....

Fri Nov 07, 2008 12:32 am » Post: #1 » Download Post

Hello,

I am grafting a GSXR (2008) front end, on to a (1987) NSR 250....

If anyone has done this, please email me- to let me know how the front end handles.

Also, I am going to run a: 130 mm front tire.

Lastly, R there any other brake caliper options...trying to find Brembos

What do you think.................................. Razz Shocked Confused Laughing Surprised Arrow Question Idea Idea Idea Idea Idea Idea Idea Idea


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sidseismic

 
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Fri Nov 07, 2008 9:38 am » Post: #2 » Download Post

Hi,
Measure the difference in the offset of the new fork/yokes compared with the origonals,
This is the measurment between the center of the steering stem and the center of the fork leg.
If the replacements have a smaller measurment then the trail will be increased and this will slow the steering and make the bike stable at high speeds, If this is less be very carful the bike may turn in very fast and become unstable at hight speeds, and be prone to tank slappers. ( the wider front tyre will also make it turn in quicker......
look at this
http://www.msgroup.org/forums/mtt/topic.asp?TOPIC_ID=76

and do the math.

They may look good but the benafits are very small , spend the money on having the Honda forks re valved and sprung, and invest in a good rear shock and the very best tyres you can get.
If you want sharper turn in increase the rear ride hight and drop the forks through the yokes 10mm.



Hope this helps.

Dave.
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maxim
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1992 Honda NSR250 MC21
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Fri Nov 07, 2008 10:25 am » Post: #3 » Download Post

This has been discussed in depth several times. Do a search for 'offset' then look at the 'Question for maxim' topic. All you need to know.
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Dave Ett
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Fri Nov 07, 2008 11:39 am » Post: #4 » Download Post

Not to dissuade you of course, if you can then why not?

Just don't expect the handling to get much better than a properly rebuilt standard SP setup.
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Andy
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Fri Nov 07, 2008 2:30 pm » Post: #5 » Download Post

If it is actually an '87, then the best thing for it really is a set of '90~ SE/SP forks/calipers/wheel/discs. They are a direct fit, and can be rebuilt and set up for minimal cost.

The best setup, if you can get it, is a 1991 RS250 front-end with MC18/MC21/MC28 triple clamps.

A 130 section tyre will doubtlessly destroy the handling.
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Please keep all responses to Forum posts on the Forum so that others may benefit.

Please DO NOT PM me for technical advice. My time is precious, and you will probably receive a faster response on the Forum anyway.


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