Replace Your Rhino 2.0 Boot! A busted boot is a pain in the butt. Your boot is the first line of defense against axle failure—once it gets punctured, it’s only a matter of time before you run out of grease and the joint breaks. That’s why you need to get a new boot on your Yamaha as soon as you see grease on your joints. Don’t mess around—keep a spare boot and keep your axle joints happy. Complete Boot Kit Our boot kits use TPEE boots for maximum strength and impact resistance. They also include clamps, clips, and grease so that you have absolutely everything you need to replace one boot.