Super fast nevertheless with a good grip the X-King was developed with the Topeak Ergon mountain bike professional team. Despite pronounced studs the X-King rolls off smoothly and very quietly. No matter if you are on your own or in a team with Race and Mountain King the super-light X-King easily covers many uses ranging from cross country/race to All Mountain. The X-King simply leaves its competitors behind. Its Black Chilli Compound offers a solid grip and is self-cleaning. The shoulder lugs provide absolute stability in curves negotiated at high speeds.