The Air Tool MTB pump is our most dependable and durable big-volume frame pump. It&';s intended to be carried on the bike for use in all off-road conditions. You&';ll find that it features a new inverted design, so it greatly increases air capacity, which reduces pump time by up to two minutes. Inverted dual chamber design is smaller yet moves 28% more air per stroke when compared to our previous design, reducing pumping time by up to two minutes. Twist locking head is easily converted to fit Presta or Schrader valves. Exterior de barril mecanizado para obtener mayor agarre al inflar. Camara completamente en aluminio para lograr rendimiento duradero. Water bottle boss frame mounting bracket included. La cubierta actualizada evita la apertura no deseada. Maxima presion: 60 PSI (4.1bar) Volumen por bombeo: 100cc