taco eater :
Richard Pellegrino from Albuquerque, NM United States
Please see me review on this kit verse the airsal on the head party kit. I run several mb5s among many other bikes that I have built. This kit is great and adds a lot of rideable snort and clean reving redline with a good chamber and carb set up. You must use your 50cc head milled with a 70 cc gasket or the 70 cc high comp head that treats offers. It is the same with the airsal kit too. Need to run the Dutch pipe for max speed or the techno racing pipe to really rev. The proma pipe is a great low end pipe but will not deliver max performance off the Malossi that the other pipes will. Use the HPI ignition. Holy mother of god is right!
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Not for NSR
January 26, 2011
taco eater :
sfcmtz from sfcmtz
i figure if you own a NSR, then you probably already know this kit is not correct, as its aircooled. NSR=Watercooled. But if you didnt know, hopefully this helped.
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There's no replacement for displacement
August 28, 2010
taco eater :
Anonymous Person from United Republic of Santa Monica
Technically this bad boy is only 65cc's, but close enough. 30% more displacement is just what the MB needs. Quality part, weighs 1/2 or less of the heavy stock cylinder (OE has cast iron cylinder) and has lotsa big ports, and they're all chamfered! Dope stuff. Only downside is the painted finish is crap; flaky and thin. Mine came out of the box with lots of paint already chipped off.
Great high reving top end but overpriced 
There's no replacement for displacement