Fairweather XC Tires 26 x 2.1"These have quickly become favorites for our vintage mountain bikes, so we figured we'd bring a few in to see if other folks dig them as much as we do. The tread pattern is great for on or off road use and that they just look right at home on 80's or 90's bikes. SPECS 26x2. 1" Clincher NOT TUBELESS COMPATIBLE Made in Japan by Panaracer (So you know it's good!)