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Difference between Mc-18 / Mc-21


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Taji

 
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Difference between Mc-18 / Mc-21

Sun May 18, 2008 9:16 pm » Post: #1 » Download Post

Hi All,

I am new here but been following this forum for some time now. I have yet to get my Nsr250 but it is on the way and I can hardly wait but I have one problem. I am finding it difficult to find a MC 21. I can however find MC 18's, do you think I should wait to find an MC21 or do this think an 18 would be fine? Are there any major differences - I know there are less parts you can buy to mod it etc but is there anything I should know about that will cause a problem.

Regards
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Andy
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Sun May 18, 2008 11:16 pm » Post: #2 » Download Post

There are two MC18's, the Mk1 (MC18R2J and R4J-SP) and Mk2 (MC18R5K and R6K-SP).

There is nothing inherently wrong with an MC18, and the motor in stock form is arguably better than the MC21's, but the MC21 is overall a slightly "sharper" package, and has better support. Remember though that the biggest issue for the NSR is the crank rebuild parts are not officially available. The MC18 uses a different centre seal to the MC21/28 (a seal is available for these models) so if the crank dies you could run into big problems.

The MC18 suspension will need a good rebuild and the F3 shock link plates to sharpen the steering, then you will find it's still a very competent bike.

I would personally choose a Mk2 for the integrated PGM-II electronics, but it doesn't really matter.
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Deon

 
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1990 Honda NSR250 MC21
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Mon May 19, 2008 4:37 pm » Post: #3 » Download Post

Hi Taji
What do you want to do with your NSR when you get it? Road or race. I know of a few MC21s available in Durban, but they are all race bikes. Let me know
Deon
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Kieran

 
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Tue May 20, 2008 4:49 am » Post: #4 » Download Post

In your boots, I'd get a MC18, and put a MC21 bottom end into it. You get the availability of the MC18 in your area, and a bottom end that you can still get crankshafts for...

I had an MC18, all stripped down for racing. Went really well. Then I got an Aprilia RS. Went well, but went bang a lot.
Got tired of that, and got another NSR, an MC21 this time, which is an as yet unridden work in progress...
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theHighlander_81

 
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Tue May 20, 2008 4:07 pm » Post: #5 » Download Post

Hi Taji,

I must say, finding NSR's in SA are hard full stop. Managed to find a decent in PTA. Good luck anyway.

my 2c.

Theunis
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Taji

 
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Sat Jul 19, 2008 10:20 am » Post: #6 » Download Post

can you believe it I found a '93 NSR MC21SE for R10 500 which is about £670 here in Cape Town in good condication, what a joke. People here not even know what these bikes are worth.
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maximum

 
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Sun Jul 20, 2008 8:06 am » Post: #7 » Download Post

Well done ,that man !
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My Bikes;
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mixalisen
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1995 Honda NSR250 MC28SP
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Sun Jul 20, 2008 3:26 pm » Post: #8 » Download Post

Hi Taji...

Same thing here in Greece too... People sell here their MC21's about 500 to 900 GBP.... But this is good thing for us...!!!

I bought recently my MC28SP for only 790 GBP...!!! In the advertisement the seller was asking 850 GBP... I said to him "Man, 850 GBP are too much for this two stroke crap"...!!! Embarassed (sorry guys - I didn't mean that. It was only for buying purposes and to achieve a better price ROTFLMAO )... And the seller reply's to me... "Ok I will do you a better price"...!!!!!!!!

Anyway, I believe you're going to love your new bike... A true race replica...

Cheers
Michael
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theHighlander_81

 
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Mon Jul 21, 2008 7:29 am » Post: #9 » Download Post

Damn Taji,

That is a great price! I paid R16k for that same bike, but it is in MINT condition.

Enjoy!

Theunis
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