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So a long long time ago I used to race, pro-am level supermoto. Had 2 CRF250R's (04' and 05') motors worked over, stock dyno on them was 30hp at the wheel, after a full motor build (head welded and re-shaped intake runners, cam, shaved head and cylinder, ect ect) put out 42hp at the wheel. Fun bikes, lots of money but when sponsor money went dry because of the economy I ran them till they popped, and they definitely did, parts wanted out of the cases. Took about 10 years off of riding/racing.
Recently got the bug to ride again, picked up a 16' CRF450R from a dealer, not registered so it is "new" but it was used as a demo, so got a screaming deal on it. Wanted a 18, but couldn't justify double the price. Figured a mostly stock 450 would be more reliable than my 250's pumped to the ragged edge, plus I wanted fuel injection, and well I could make up excuses to get a new bike all day long, but you guys hopefully understand.
Couple days trail riding, day on the track, and really missed up lining up and seeing the flag drop. Well, there is a all dirt "supermoto" actually a TT, close to home on the 28th of April, so decided to pull out the old SM wheels with some rain tires, ordered a sprocket adapter and started ordering some parts...
Here is the progress....