Bemsee/MRO are running this new class next year:
Superbike 400
Any production based machine (ie eligible for a V5) with frame, swing arm and engines cases from the same model, 2-stroke or 4-stroke maximum capacity 415cc.
Minimum weight half-wet 145kg for 4-stroke and 132kg for 2-stroke.
Tyre choice is free.
Maximum bhp 78 (with 2bhp tolerance in exceptional climatic conditions).
How that horsepower is obtained within the above rules is open to each competitor.
The minimum 2T weight seems like it's been set just low enough to allow the NSR to compete. Previously, only officially imported, UK bikes were allowed (Dave Stewart once told me to sell my NSR and buy an Aprilia if i wanted to race a production based two stroke with bemsee/mro!). Seems bemsee have been listening to the riders requests and the new class is the result. The horsepower limit is good for the two strokes too and Dave Stewart points out on the website that that 85bhp FZR won't be able to race in this class unless it is detuned.
I hope someone is inspired enough by this new class to have a go at racing because i'd love to be able to cheer on someone running a Tyga 300 motor. Seeing as Matt made the 300 kit to be an 'all round' improvement in performance i have no doubt he could put together a harder tuned engine that would sit right on the power limit!
You could drop all the standard bike's weight with Tyga bits (gp race seat and subframe, tyga lite ally bits) then bolt a hunk of lead somewhere low down (between engine and expansion chambers??) to lower the centre of gravity but keep in line with the weight limit.
The RGV guys have Leighton Walker in MRO SS400 to cheer on, who's gonna be our man??
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After years of moaning about immigrants now i am one...
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I once read an article in MCN years ago about an aussie racer who had built a carbon framed ZXR400 and stuffed a zzr600 lump in it... I think that was about 120Kg... 
Shoot me if you like 
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