MB1 Suspension is the company that did Bostrom's factory Honda. Valving and springs also has a lot to do with the riders weight and speed. There are so many things to do with a CRF it is not even funny. But—some riders like some things others not. 17 or 16.5 front wheel? 20, 22, 24 or 26mm clamps? O2, 03 or o4 link? Lowered or not lowered suspension?
I have ridden several different versions and laps times are similar if the bike is set up right - but some I liked better than the others. But others riders preferred the other bikes.
It is very subjective.
Start off with a basic bike, 17s, stock link, stock height and event stock suspension, than maybe stiffen up the suspension and valve more rebound control into the fork and shock. That is the best place to start
I have ridden several different versions and laps times are similar if the bike is set up right - but some I liked better than the others. But others riders preferred the other bikes.
It is very subjective.
Start off with a basic bike, 17s, stock link, stock height and event stock suspension, than maybe stiffen up the suspension and valve more rebound control into the fork and shock. That is the best place to start