Profile: R.G. Rollin Co. specializes in the design and manufacture of mechanical remote control systems. Our product line includes ball bearing cables such as KRF 3000, KRF TT 3000, utility controls and gear drive shutdown. Our Solo KRF 3000 ball bearing control cable is a push-pull cable design with quick disconnect terminal ends that interface with all Solo control heads and gear box assemblies. Our Solo transfer unit KRF 1000 is to take the singular motion of the control head by way of the control cable and translate it into two separate motions shift & throttle.