I don't sell the 1.0 version of the pump- the 2.0 is the only way to go.
Most people (including me) thought a pump, is a pump, is a pump. Not true.
Pumping friction is GONE! Save your energy for riding.
Longer barrel for less pumping.
Built-in gauge for nailing your favourite kite pressure every time.
Built-in valve alternates from two-way pumping to one-way pumping for the final stage of inflation. This saves your back and your energy.