This mountain bike model allows for quick inflation for larger tires. Its nozzle is compatible with American, Presta, and British valves. Its dual action design allows air to be pumped in by either pushing or pulling. It can inflate up to 60 psi. Its approximate air volume per stroke is 81.4cc. Its aluminum alloy cylinder includes a frame mounting clamp and dust cap. It measures 183mm long x 32mm wide x 28mm high, weighing 126g. Product color may appear differently depending on your display settings. Product specifications, logos, and other design details may be subject to change for product improvement purposes. We cannot answer questions about dimensions not published by the manufacturer or personal fit. Thank you for your understanding.