Gem Hand Pump - Green

love the pump, what can i say?

Great pump, much smaller and lighter than I expected. Like the low and high volume adjustment.

All my reviews seem to be 5 star. Probably because I am guided heavily by other users, and the gear they recommend works. This unit is no different. This is a small light unit. Twist base to change from low pressure to high pressure, and give it 100 pumps on each and you have a 700c/25 tyre at 90-100psi. In the middle of nowhere during a hill climbing training session this proved beyond doubt that this unit works. Heaven! Only other thing to note...I have always had pumps that require phenomenal, valve snapping, wheel twisting effort to get that last 20-30psi into the little tubes. This one does 100 pumps (sounded bad in the reviews but just count each pump to ten, ten times, its quicker than it sounds) and they are all at the same power. No face crunching final pumps. Just smooth easy pumps. If 100 pumps sounds silly to you then don't buy this pump. Cheers, and may your rides never need to use a pump...

After reading some of the reviews I went ahead and bought it anyway. This is a small pump and it suppose to be a small pump. You hope you never have to use it. What I mean by that. Most small pumps are a pain to use, because it takes forever to get air in your tires, but in case of a flat while you are out riding you will need this portable pump to get you back home. I suggest everyone to get a large floor pump for your house or in car to put in the right air pressure in your tires before each and and every ride. My best suggest before using this pump is to check it out on YouTube. This pump has a transmission at the bottom of the pump to help you get in more or less air into your tires. I recommend you try out this pump before you really need it to understand how this pump works and watch the YouTube video..Remember this is a just a back up portable pump that you hope you never have to use while out riding. Always have a floor pump as your main pump. You can find the YouTube link here [...]

Works well and looks slick!

So far I like it. Size is good, flow is good. Takes a bit to move enough air in larger tires. The volume/pressure knob on the bottom is easy to accidentally move from one mode to another.

This pump works great. How do I know? A bike with cheap tubes! The low pressure setting helps get the tube inflated fast and switching over to the high pressure setting helps get the tire the rest of the way there. A good way to save a little time if your tires ride at over 45 psi. It's small enough to stay out of the way next to the bottle cage on the frame but not so small that it's a pain to use.

Review update 10/11/2015This pump let me down yesterday while I was on a flat deep in the wood at dark time ... not able to get any air from it !I was lucky to have a CO2 device with only one cartridge, so I was able to return home.I only used it a few times over last year.I will have to buy something that is sturdy outside AND inside !*** Initial review ***Good pump, solid feel, 2 inflate speed and pressure indicator is helpful,but it is very long to pump a mtb tire from empty.Should have went with longer one.Also, would have like to get a flexible hose ... after 500 strokes, that can break the valve !All in all, this is a good emergency pump... would rate 3.5 stars if I could.

Es muy ligera, su tamaño es pequeño y muy práctica para llevarla en la bolsa de las herramientas...o si se desea. Se puede fijar en el cuadro... trae su base para hacerlo

Funciona muy bien.El modo de alto volumen es un poco duro de trabajar; pero asi es en casi todas las bombas pequeñas debido a su tamaño.

Pros: lightweight, looks great, does work for low pressure usage. Cons: much too difficult to pump a triathlon bike tire to 90PSI, unit rated to 100PSI. Recommendation - if you have hands of steel and are willing to pump, pump, pump and pump some more, than this is the product for you. Instead I bought this from Amazon and it worked beautifully in seconds + no sore hands + to the desired tire pressure: Tire Inflator Portable Air Compressor with 8000mAh Battery,150PSI

Diseño único, fácil de usar

a great small compact pump that is easy to use and works! This is my 3rd pump of this make and really like the attachment that holds it near my water bottle and blows up my tire to full capacity when I have a flat. unfortunately so do the 2 other people that stole my first two...remember to bring it inside with you when you lock your bike up!