Specialized Air Tool Dual review
This spacey, shiny aluminium pump clips nicely into its bottle-cage mounting bracket with a solid locking arm. Rather cleverly, the handle has an MI5 secret compartment – a screwtop lid in the top hides sandpaper and puncture patch, and there’s just enough extra room in there for more patches, some glue and beer money should you wish to stash some for times of need.
As the Dual name implies, the dual head allows you to pump either Presta or Schraeder at the flick of a lever without needing to change bits over, and it gives a snug grip on the valves, although both heads are open to crud ingestion if bolted to the bike. A relatively short stroke and an in-line handle makes it harder work than the others here, especially when you’re getting towards the higher tyre pressures.