Topeak Foot pump Joe Blow Twin Turbo

After 25 years of research Topeak engineers present the TwinTurbo technology, a new concept for foot pumps that will save you 50% of time and effort.To fill road and mountain bike tires efficiently and easily you need a high pressure air outlet and a high volume flow. TwinTurbo technology uses both the pull and the push of each stroke through an air transfer system between the two barrels. Pulling the handle upward moves a large amount of air from the larger barrel to the smaller one. The push will compress the air in the smaller barrel for a high-pressure output that will inflate the road or ATV tire. TwinTurbo technology / SmartHead / 14 bar