"Mount our Adventure Rear Bumper 16"" to your sled for a stylish and safe ride. Made of lightweight aluminum, this snowmobile Bumper fits the REV Gen5 and REV Gen4 129"" for the edge you need. Make every adventure a thrilling one. Stunning style that matches the Adventure Front Plate. Constructed with a combination of lightweight extruded and heat treated cast aluminum for strength - like the XC Cast Bumper."