The Boundary 1.5HP is designed for the high pressure of road tires and capable of reaching 120PSI / 8.3 bar. An extendable head means it's easier to pump and the sealing lever doubles as a protective cover to keep it functioning no matter the conditions under tire. An additional sleeve seals the barrel to prevent water penetration.MATERIAL: Alloy barrel and handleVALVE TYPE: Extractable Presta with sealing leverMAXIMUM PRESSURE: 120PSI / 8.3 barWEIGHT: 73g approx.FEATURES: High Pressure construction optimized for road bikesInnovative new sealing lever doubles as protective head cover protecting against water and dirtExtra barrel sleeve avoids water penetration during bike washesExtractable head reduces the risk of damaging valve stem during inflationDIMENSIONS: Small 170mmAIR VOLUME PER STROKE: 19cc