I'm no expert, but it looks like a MC18 with aftermarket RS bodywork. If its an R it would be the entry level model with wet clutch and non-adjustable suspension. Nothing special.
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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