The ultimate workshop bike pump with dual chamber system for easy filling of road and MTB bikes.twinTurbo technology uses the fact that when the handle is pulled out, air is compressed from the large chamber into the small chamber, which then either releases air under high pressure into the road bike or releases a large volume of air into the MTB bike when the handle is squeezed. With the SmartHead™ DX1 with extra-long hose and drain button, you can easily connect both the Galus and Auto Valve. SmartHead™ DX1 head, extra-long hose and drain button Body Anodized aluminium Body Anodized aluminium body 3" top-mounted analogue pressure gauge Pressure 200 psi / 14 bar Base Aluminium / Rubber inserts Size 72 x 28 x 21 cm Weight 3 kg