The problem is they don't work with just a card and a jet change. You do need the HRC kit, and unless you have a lot of experience, someone to set it up correctly. There's an awful lot of potential in any NSR (though not quite so much for an MC16 in its base form), and not releasing at least 60hp is just doing it, and yourself, a massive injustice.
Anyone who says ragging a sub 40hp (and yes, most stockers make even less than the 40hp legal Japanese limit -- we regularly test them at around 37~38hp!) MC28 is fun, has clearly never ridden it on anything other than a go-kart track! The sad truth is even a good 125 will give an MC28 a hard time on an open road! It's really worth the investment.
![](http://images.nsr-world.com/dyno/mc28.png)
The red and green traces are both of similar spec (same race pipes, airbox mods, jet kit, inlets etc.), but 010 vs. 030 cards. However, the red bike was considerably more "tired" than the other. The stock bike was, for all intent and purposes, brand new.
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Andy.
NSR-WORLD.COM
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