The Bontrager Air Support HV Pro Mini Pump is a compact mini pump that easily packs in your jersey pocket or bag and quickly inflates larger volume tyres. An extendable air hose helps eliminate stress at the valve stem and a larger chamber allows for quick inflation up to 60 PSI. This refined mini-pump features a polished silver finish and comes with an on-bike mount.Bontrager Air Support HV Pro Mini Pump FeaturesHigh volume air chamber for larger-volume tyresInflate to 60 psi (4.15 bar) with little effortAn extendable, hidden hose reduces stress on the valveThe mounting bracket fits easily under the bottle cageDesigned to work with Presta valvesBontrager Air Support HV Pro Mini Pump SpecificationsPump type: MiniValve: PrestaGauge type: No gaugeMaximum pressure: 60 psiFrame-mounted: YesIncludes: Attachment bracketWeight: 175g