Mishimoto has developed a patented X-Braced Dirt Bike Radiator for the Kawasaki KX450F.Upgrade your stock Kawasaki KX450F radiator with a Mishimoto X-Braced Aluminum Dirt Bike Radiator to receive 30-percent greater cooling efficiency.The built-in corner bracing ensures the highest level of durability to riders on the track or off road.All Mishimoto Powersports radiators are made with aircraft quality brazed aluminum and are precision TIG welded for extreme durability.The Kawasaki KX450F Radiator is designed as a direct OEM fit to ensure smooth installation.