Lower height, cup shaped center knobs with angled shoulder lugs provide low rolling resistance and grip in a wide variety of conditions Features a tread profile adopted from the previous version of the Racing Ralph provides an excellent front wheel choise when running different rear tires KG - K-Guard belting offers entry level puncture resistance Standard 29x2.25 622 Wire Belted Bk/Bsk 54 790 50 NoUPC/EAN/GTIN: 4026495848671