Topeak Mountain Da Dual Action Bike Pump. The Mountain DA pump is small enough to go with you on your ride, but powerful enough to fill both large volume fat bike tires and higher pressure MTB tires with ease. TOPEAK Oversized aluminum barrel fills large volume MTB, fat bike tires with ease while Dual-Action (DA) doubles volume with each stroke and inflates tires up to pressure fast.
This compact pump features a big volume barrel with dual-action technology to inflate mountain bike tires twice as quickly as a traditional pump. The over-sized barrel allows a larger volume of air to be compressed into the tire, and the Dual Action doubles this volume again with every stroke. The initials of the Topeak Roadie DA pump stand for Dual Action, and that's the selling point for this well-made if otherwise unexceptional mini-pump – it works whether you're pulling or pushing.
Topeak Mountain DA Mini Pump is a powerful pump for mountain bike tires.
The Topeak Mountain DA pump takes on fat tires with ease thanks to its over-sized barrel and Dual Action tech.
Big volume barrel while Dual-Action (DA) doubles volume with each stroke and inflates tires up to pressure fast. Integrated dust cap keeps pump head clean and thumb lock lever insures air-tight seal. It is compatible with both Schrader and Presta valves.