Make:               CFMOTO
Model:             CFORCE 450/520-L
                           CFORCE 450/520-S
 
This is the best kit for overall riding experience. This kit gives you all you will need for your machine on the trails. 
Best for trail riding, plowing, hauling, some mud/sand
Smoother engagement
Quicker backshift for faster throttle response 
Reduces belt slip and heat
Drive at lower speed with higher RPM for more HP and torque
Gives you more upshifting with same rate as engine for more power
Tire sizes 25-28"