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

NSR - 250/CR500 MESH...................
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NSR-CR500-MESH.....

**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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MC28, Honda RC30,
BMW GS1200.
1000cc Bonnie.

**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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NSR300R - Why did i ever have a 250...

**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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MC21SP Plaything
BMW F800GS Bumblebee
Triumph 9551 Daytona Big boys toy
FJ1100 Sporting relic
GTS1000 oddball

**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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Andy.
NSR-WORLD.COM

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