Chain Chomp Wheel (known as Chain Chomp Roulette in Europe and Oceania) is a battle stage in Mario Kart Wii. It is shaped like a roulette wheel, and rotates counter-clockwise. It appears to be located in an aquarium, since some eels can be seen swimming outside of it, and there are also Mushroom-shaped plants there.
All the racers begin at the top of the stage, and fall straight back down it. A Chain Chomp rolls down the middle as an obstacle, which is a right pest since in the middle there is a giant star complete with some Item Boxes.