I originally saw these guards on my friends bike. I had been looking for radiator guards that actually seemed like guards. Most of the other guards just protect radiators from front impact, while these cage in your radiator and keep them from twisting, bending or crushing. They will fit over slightly bent radiators. I did have to trim my louvers a bit, but its very minor as you can see in the pics. When reinstalling plastics put the bottom bolt in first! this will make things easier! I would describe these guards as beefy and considering one new radiator costs $120 for my bike, well worth the money!