Review on Compact and Lightweight Mini Bike Pump - Fits Presta and Schrader Valves - 160 PSI - Includes Mount Kit - Ideal Bicycle Tire Pump for Road, Mountain, and BMX Bikes - Only 2.9 oz by Duane Hayes

Owned for a month. Works well with my Presta hose valves. My scale says it weighs 3.0 ounces. which corresponds to CO2 cartridge (2.0 oz) + CO2 value (1.0 oz). Fits easily in my underseat bag. I have WTB Riddler 700x37c tubulars on my gravel bike. It took 660 pump strokes to get to the 3 bar pressure I normally ride. A lot, but works in emergencies and doesn't use consumables like CO2. For comparison, I have a RoadMorphG pump, 3x length and diameter, 4.9 oz. (obviously the wound doesn't fit in the pocket), which took 100 strokes to reach the same tire pressure of 3 bar.