Rad swap

**Sun Oct 04, 2009 10:44 pm » Post: #1 » Download Post**

Does any one know if an mc18 rad is the same as the mc21, ie, shape and fittings, in other words will it replace my 21 rad? Cheers.
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Proud Father of , 05 ktm 400exc supermoto 2018 honda crf rx supermoto

**Mon Oct 05, 2009 12:02 am » Post: #2 » Download Post**

MC18 (and MC16) radiators are flat, the MC21/MC28 ones are curved.

An MC18 rad could probably be made to fit, but whether it fits without modifying the bodywork is another matter.
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Andy.
NSR-WORLD.COM

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**Mon Oct 05, 2009 6:41 am » Post: #3 » Download Post**

Cheers Andy, thats all i wanted to know, whether the 18 one was flat, looks like ill have to repair mine.
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Proud Father of , 05 ktm 400exc supermoto 2018 honda crf rx supermoto

**Mon Oct 05, 2009 10:27 pm » Post: #4 » Download Post**

my 18 has a curved rad on it, i just pressumed they came like that as standard???

**Tue Oct 06, 2009 1:39 am » Post: #5 » Download Post**

dunkenb wrote:
my 18 has a curved rad on it, i just pressumed they came like that as standard???

Nope.
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Andy.
NSR-WORLD.COM

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**Tue Oct 06, 2009 6:18 pm » Post: #6 » Download Post**

probanly explaines why it never kets above 70 on my temp gauge??

**Tue Oct 06, 2009 8:40 pm » Post: #7 » Download Post**

The 18's nor any of the NSR's tend to run that hot. I dont think any of my 18's have ever gone over 70deg.

Well one did but that was a 300. It boiled almost as much as I did.

There is always the time Fontyyy's 28 read 1** deg though in London that time.
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If I have to take the carbs off once more...

**Fri Oct 09, 2009 8:37 am » Post: #8 » Download Post**

Lesviffer750 wrote:Does any one know if an mc18 rad is the same as the mc21, ie, shape and fittings, in other words will it replace my 21 rad? Cheers.

There is a thread about curved MC18 rads of the HRC type, but you'll need to join as a titanium member to view the specific info...........

http://www.nsr250.net/forums/viewtopic.php?t=7566

You will be able to find regular MC21 rads on Ok!Shon / Yahoo Auctions or get Moriwaki Man on the case Wink

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Rich
MC21 Track Bike / RS250 NF5 'Spencer', NX5 'Cadalora' & NXA 'Aoyama' / RS500 / Two Brothers Racing RC30

**Sat Oct 10, 2009 5:03 am » Post: #9 » Download Post**

My MC-18 also has a curved radiator. That's because I stole one off an MC-21, fit on without much issue had to trim my Tyga body work a little.
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Rad swap

Rad swap

rad swap

Re: Rad swap