I bought the pump for bicycle tires (touring bikes) and car tires. Important to me was a good resolution, large and accurate pressure gauge. This has the pump. I could detect no deviation from the calibrated tire inflation at the gas station. However, the large displacement does not allow too much pressure, 5Bar I failed, but I also do not need to 4Bar are quite possible. The rubber inserts in the valve heads seem to me to be a little too sensitive. When removing the valve after inflation always something rubber is torn through the valve thread. Very long are no longer maintained and there are no spare inserts it. Therefore only 4 stars, for the pump itself from me it 5 stars.
