View product detail page of Two-Wheel Conversit Kit, Includes: 16" Knobby Tire, Dual Wheel Axle, Hardware, Axle Brackets, and Instructions. Two-Wheel Conversit Kit, Includes: 16" Knobby Tire, Dual Wheel Axle, Hardware, Axle Brackets, and Instructions Two-Wheel Conversit Kit, Includes: 16" Knobby Tire, Dual Wheel Axle, Hardware, Axle Brackets, and Instructions Code: TWKT