Semi Slick : Semi-slick tread design is ideal for road use, but with enough grip for light off-road useSuitable for either front or rear wheel use.XC Knobbly Universal : Classic mountain bike tread tyre compatible with virtually all adult MTBsOffers great durability, with excellent all-weather grip and traction in a value for money packageSuitable for either front or rear wheel use.Slick : Slick tread design ideal for road useLightweight skin wall constructionTough 60 tpi tyre casingSuitable for either front or rear wheel use.