Pair of Tires Bell -(made by Cheng Shin) 12-1/2" x 2-1/4" all Black Comp III Wire bead Pair of Tires Bell -made by Cheng Shin 12-1/2" x 2-1/4" all Black Comp III Wire bead This is a PAIR of Tires !! Designed for smooth trails, bike paths, and street use. Works as well on dirt as it does on pavement ! ISO Diameter: 203 ISO Width: 57 mm PSI: 30 - 40 PSI 60 TPI