Classic Comp III tread pattern tire with true natural SKINWALL made from Kenda's original K50 molds. This a BRAND new tire. NOTE: This NOT a gumwall tire. What's the difference? A gumwall tire has a thick coating of butyl over the sidewall which adds about 5-6 ounces of weight to the tire. A true skinwall tire like these which we had custom made for us by Kenda has a minimal amount of translucent butyl over the casing making for a lightweight tire. Color: Black tread / Dark Tan Skinwall Size: 20" X 1 3/8" Inflation: 40psi Casing: 30 TPI SOLD INDIVIDUALLY NOTE: This is a MINI tire. It only fits on a rim with a 451mm bead diameter. A "regular" 20" tire has a 406mm bead diameter. Your rim or existing tire will be marked with bead diameter - be sure to check before ordering. The Sheldon Brown website is a great resource to understand the completely random and non-intuitive tire sizing scheme created by the last 100 years of bicycle manufacturing.