Skidding tire design for urban conditions. Continual center ridge for added speed and easy pedaling. SRC - Standard Rubber Compound, combines the best attributes of low rolling resistance, extreme durability and tread longevity into one universal package that benefits riders of all disciplines PRC2 - Utilizing the same protective material that is in the full Iron Cap protection but limited to just under the tread surface Standard 700x28 622 Fold Belted Bk/Bsk 100 275 60 SRC/PRC2 No