Premium-quality road pump with smaller volume chamber for higher-pressure tyres. Inflate to 120 psi (8.25 bar) with little effort. Extendable, hidden hose reduces stress at valve when pumping at higher pressures. Threaded head securely locks onto Presta valves. Available in two lengths: longer 429233 provides more air per stroke, shorter 429234 fits snugly inside jersey pocket. Mounting bracket fits easily under bottle cage.