Ian, if your bike is in standard power spec, you can liberate some more ponies, as Dave said loads of info on the main section of this website and also at..........

http://tyga-performance.com/site/index.php?cPath=72_80_132_134
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Rich
MC21 Track Bike / RS250 NF5 'Spencer', NX5 'Cadalora' & NXA 'Aoyama' / RS500 / Two Brothers Racing RC30