StephenRC45 wrote:Well ive ordered a 300 kit but i must admit ive seen stock RS250 hondas make over 78bhprw so im sure with some work a 300 can be made every bit as good as that.

A stock engined MC21 with the normal bolt ons should be able to make 65bhp and 31ft-lbs.

Dare i say it ive got graphs of Yamaha TZ's making over 80bhp.

Does that mean you are prepared to spend more money on getting your 300cc cylinders tuned to get the bhp you should be getting already

A RS honda is NOT a NSR.
People seem to get carried away with the notion that an NSR is just like a RS with lights. They are a pile of sh*t in comparison.Yes its a great road bike but its not a race bike.
They dont go round corners as well or stop as well or accelerate or brake or go as fast.
Mr Honda sold the image just like Suzuki with the RGV etc
TZ is a pukka race bike like the RS running 1 ring pistons, radical port timing, trick ignition that is set so far advanced they are on the limit and a set of works developed pipes that were over 120 decibels, open carbs(no airbox to keep it nice and quiet) and is also not built to last long.
Im sure you could get over 80 bhp out of an NSR but it wouldnt last long either.