Who said bumpers are simply functional? Sure, safety is paramount when riding, and adding a Ski-Doo bumper to your snowmobile increases yours; but when you ride with the Adventure Rear Bumper, you give your sled an even cooler appearance. When you pair it with the front bumper? You can look twice as nice. This Ski-Doo rear bumper is more than flash — it’s where form meets function. Matches the Adventure front bumper. Stunning style and construction. Made of lightweight stacked aluminum plates. - REV Gen4 137'' (except Renegade Enduro and Renegade Sport) Doesn't fit REV Gen4 146" short tunnel