2005 CR500AF, 1991 CR500 motor in a 2005 CR250 frame, all work done by a certified welder this is not a micky mouse conversion it is very nicely done. Fresh fork seals, motor has a lot of compresion and tons of power. This bike is fast. Pink in hand and registration until june of 2012.
the 450 will have less power and will be harder to start, and will be heavier, but to make up for it it will require more maintenance.
4stroke=dead fish