Bike Pump with Gauge - Fits Presta and Schrader - Accurate Inflation - Mini Bicycle Tire Pump for Road, Mountain and BMX Bikes, High Pressure 150 PSI, Includes Mount Kit

Unit arrived today. I need it for my two MoPed-like scooters. I ran the following test: 3 x 8 inch tires already at 30PSI. hooked up pump to raise to 40PSI. It took almost 1 minute of vigorous pumping to get from 30 to 40 PSI That seems like a lot of work for a small tire. If I had a mountain bike with a flat, that would roughly translate into 12 minutes of vigorous pumping to go from 0 to 40 PSI. Of course better than being stranded on the trail.The accuracy of presure gauge exactly matched my digital talking tire gauge with several inflates and deflates. Very impressive. I love the rubber hose. I could not hold unit to the ground and pump without the hose. Unit looses 2.5 PSI in the fast removal of hose and schrader valve. Tested many times and very repeatable. I have a professional tire stem extender. It looses 1.0 to 1.5 PSI in unscrewing the valve. Also very repeatable.So this is a great little product. Wished they hand made the barrel 2 inches longer. That would have increased the pumping rate by 20-30%. A very significant factor.Dr. Ted CooperAmazon

Worked well with Presta valve 4-5 times. First time used on a Schrader valve it literally fell apart. This was 2 days after Amazon’s return deadline. Not recommended unless you like things that don’t work.

It is built nicely, but doesn’t fill the tire as quickly as expected. It feels like I’m adding air to the tire, as the pump becomes more difficult to fill pump and the gauge shows air pressure goes in, but the tire doesn’t feel and harder. I’m still using my dedicated machine I use for my car tires, which definitely fills the air - and my external air gauge shows the added air/pressure in the tires.

Small and light enough to easily stow, and the built-in pressure guage is accurate.Unfortunately, I had to use this pump the first time I rode with it when I had to replace a tube, and I had no issues at all with it.Worked as well as I expected.

Would not recommend this pump. You will be on the trail pumping for hours just to get one pound of pressure

I ordered this a long time ago and never once have I got a correct reading from this pump. Stopped using this pump after getting bizarre PSI reading on it 3-4 times in a row, absolutely useless piece of junk.

Great so far. I love the built in gauge. It's lightweight and compact. I really like the pivoting rubber neck.

It is not my first pump, but seems to be the fastest to switch in Schrader and Presta valves. I like the hose design, which only need to pull out the hose without screw. Also like the hidden pressure gauge. It is said to be accurate within 3PSI of error. Hope it really is.