[fbr]

I'm ready to buy a new or used late model CRF450R since my '02 transmission broke. Anyone know a good buyer's guide that will bring me up to speed on the evolution of the CRF450R? I'm mostly interested in just the last few years.

[JimDirt]

Motocross Action and Dirt Bike (same publisher) usually puts one out every year , you could look at online back copies

Another source is Bikez , they usually have good rider reviews of bikes both street and dirt
https://www.bikez.com/main/index.php
(Just type in Honda CRF450 in the Search box)

Those are the first 2 that come to mind when looking for a review