The RBO It Fits Adjustable Spare Tire Mount For Your Utv Is A True Industry First. With Our Sliding Mount You Can Easily Adjust This Mount To Accommodate Different Sized Tires And Wheel Offsets. Not Only Did We Design This Mount To Work With 10Mm And 12Mm Wheel Lugs We Also Include All Of The Mounting Hardware. When It Comes To Installation; This Mount Has Our Exclusive & It Fits ™ Base Plate. Just Look At Any Of Our Racks And If You See The It Fits Icon You Will Know This Mount Will Bolt Directly Onto Any One Of Our High-Quality Racks.