i have replaced my front tire with a ski i wish i had a camera to take pictures but im sure you can imagen totaly makes winter motor biking fun in a ft of powder. i kept sliding around with no way to steer with a tire but the ski makes a big differents with my 3 inch solid studded rear tire and a 56 tooth sprocket i can play in deep snow. all i can say it looks like one of those dirt bike snow cats with the way i have the fork