I think you'll find the answers to most your questions in the tech section of this site. Also check this site: http://www.dreamgate.ne.jp/NSR/
Then you can refine your questions better.
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james
Its not how fast you go...Its how you go fast.
MC21 Rothmans
RS250
RC31
CRF250X
748R
Porsche (many)
http://members.rennlist.com/j911brick/rennlist3_002.htm