No....while very "collectible" the CR450R is considered a dog - problems with powerband, transmission ratios, and suspension. It took them until the 1983 CR480R to get things worked out. These are considered the "must have" to ride in the age classes in post-vintage motocross. I had one but in a moment of insanity - OK spousal compliance - sold it. It is now being (has been?) restored by Vintage Factory for a collector. I do have a 1979 CR250R which I will never sell and will ride at Adelanto next year....