Specifications include, but are not limited to: ROLLER Engine: 13-16 horsepower with electric and manual starting capabilities. Battery: 12 Volt minimum Speed: Variable 0-11 MPH Hydraulics: Individual drives to the steering systems and each of the three rollers. Displacement: Minimum 3lbs P.S.I. Traction: Rollers float and drive independently to allow for 100% contact to ground surface. Options: Light Kit, Brush System. TRAILER Tires: Two (2) 18.5x8.5-8 6Ply. Hitch: Adjustable height. Jack: Swivel jack stand with castor wheel mounted to trailer frame. Axle: Spindle type with hub assemblies. Ramp: Loading guides and traction mat. Traction: Rollers float and drive independently to allow for 100% contact to ground surface. Options: Light Kit, Brush System.