Overall I like the idea and the art style reminds me sort of of the good old flash game era. Also everything feels in itself logical and is fun. Furthermore I am happy that this is not another beyblade or gambling game. The only thing that I would possibly criticize is that it is sometimes difficult to see what is happening, making it difficult to react. Here the fix would be to zoom out with the camera, as the player gets more speed. The second this is that the jump is barely noticable, especially if the tire is slow. Here more impact would have been cool, to give the player the feeling of "being in charge of what happens".
All in all: solid jam game.