I didn't think much about this added finned area under the bottom radiator opening of the 2011 RTV 900 . On the '05 model, I knew that open hole just in front of the radiator was an accident "waiting for a stick" to happen.Grass seed collected like crazy- even with the radiator screen in place. I realized that this thin finned piece of metal would pass off glancing sticks but didn't think about the grass seed. The difference in the amount of grass seed not collected in the radiator is huge. I really like this thing. I plan on adding a piece of the expanded metal for a better stick guard just above it because a big stick would win, but the fins work well for diverting the seed of coarse the dust still collects but wow... I can see Tommy's wheels turning on this.. bordercollie