“The JBS Yamaha Rhino sheave kit is ” Hands Down ” the best modification that can be done on a Rhino. By simply replacing the OEM primary sheave with a JBS sheave, You get much more low end pull and gain 6 to 8 mph gain on the top end. The kit also included a secondary spring, overdrive weights and grease less sheave sliders that allow the CVT to operate at it`s full potential. The sheave also reacts much faster in the transition from “Hard Throttle” to “Engine Braking”.
The JBS Sheave kit makes the Yamaha Rhino what it should be ! Extreme fun !
Thank You JBS ! Larry”