Great value tubular for road use&44; ideal for training & good enough to race on.220 TPI cotton casing & Kevlar 3D compound makes Rally an excellent road training tyre. Cotton has a long history in the production of casings for racing tyres & tubulars. Its still used today on account of its unequalled&44; proven qualities: strength&44; flexibility & low rolling resistance. Pressure: 7/9 bar (100/130 psi) Twin tread technology 36mm valve