Clasp me the positive reviews and can not understand the negative

this air pump can I fully recommend.
For inflating a tour bike wheel you need about 50 pumping operations, then the tire is no longer pressed with your fingers. She is pretty smooth and I can produce significantly higher pressure than at my old supplied the bicycle pump.
With the help of a lever, the pump can thus clamp the valve that it does not get out slips while pumping. I took her on three separate valves to run:
"Dunlop valve" (behold images at Wikipedia under "bicycle valve") my wheelbarrow and a bicycle tire (the valve of the wheelbarrow is thicker) and a "French valve" (quote Wikipedia - probably correct "Sclaverandventil").

This makes it suited the French valve I had the rubber adapter of the pump for the valve to take out and turn around - at first it looked like it would not fit.

So far, the pump has good durchgehalten.wg. Transport I have often remove the front wheel and to let out the air, and just then inflate again.

Conclusion: Thoroughly recommended.