Roadie TT is an all-metal pocket mini pump with Twin Turbo technology. This transfers a larger volume of air from the larger diameter outer chamber to the smaller diameter inner chamber, which increases the efficiency of densification at higher pressures by up to 50%. The integrated dust cap keeps the pump head clean, while the clamping lever ensures a perfect seal. Head: Galusky valve with integrated dust cap Material: aluminium Volume: 11 bar / 160 psi Volume per stroke: 41.4 cc Accessories: pump holder Side mount bracket Dimensions: 19.5 x 3.3 x 2.35 cm Weight: 100 g