I was able to test drive an RK55 before ordering. It was in the parking lot on blacktop, but the tractor sales guys in the Heath, OH store let me spend as much time as needed in the tractor, and even popped the hood and spent some time pointing out info on the motor, how to easily remove the side panels, etc. Very helpful and informative. Was able to operate the FEL, but not with any gravel or other materials.