Pro Bike Tool CO2 Inflator Quick & Easy - Presta & Schrader Valve Compatible - Bicycle Tyre Pump For Road & Mountain Bikes - Insulated Sleeve - No CO2 Cartridges Included

Really good product. Used once and worked perfectly, the rubber sleeve will help not to freeze your fingers when you open the valve and discharge the CO2 cartridge.

I haven't used this on a real puncture as of yet but tried it out on a spare presta inner and oh how easy it is. I've tried others in the past but always seemed to be hit or miss. The screw-on fit and lever operation of this inflator ensures no escape of much needed gas. Very pleased with this product and can't recommend it highly enough. A must for your emergency toolkit.

Not used it at the moment, tucks away in your pocket very easy small enough to go in my tool pack very well made light weight I loved the email I got after purchased from the seller advising on use and life time warranty any issues been asked to contact the seller. I will update when I use the pump. if looking for a co2 pump you will not be disappointed I have now used for the first time on Saturday and it so a lot better than my old one no leaks and the pressure gauge made it so easy to control the pressure and speed of fill. I would advise anyone thinking about purchasing this just do it you will not be disappointed well done pro bike tools

Ottimo gonfiatore di CO2: compatto, pratico e velocissimo da usare. Il rubinetto in metallo è un vero plus perché permette di regolare la pressione della gomma senza sprechi, cosa che altri modelli più economici non fanno. Si monta facilmente sulla valvola, la bomboletta si avvita in un attimo e in pochi secondi la ruota è gonfia. Perfetto da portare sempre in uscita: occupa pochissimo spazio e dà sicurezza in caso di foratura. Un accessorio ben fatto e robusto, che fa esattamente quello che serve a chi va in bici. Consigliatissimo.

UPDATE (10/05/17)============================= After owning this product just over a month, I have no complaints, only praise. Because of its compact size and ease of use, Pro Bike Tool's CO2 Inflator remains a valued part of my bike maintenance program. STICKING VALVE: In my original post I mentioned difficulty getting the valve to open. That issue has NOT repeated; the valve has worked perfectly every time I use the inflator, which is almost every day. CARTRIDGE LIFE: the other question I had regarding this product was how long a cartridge would last once screwed into the inflator. It does appear to lose CO2 over time, but I would call this loss negligible, losing perhaps 10 PSI over a 7-day period. So it's not a perfect seal, but at just under $1/cartridge, it's manageable and acceptable. REVISED RATING: Product continues to live up to its previous 4.75 star review, and as the sticking valve issue has resolved, I revise my rating to 4.9 STARS. HIGH RECOMMEND. ORIGINAL POST======================== Disclaimer: I've only owned this product for about 2 hours at the time of this writing. Please check back for progressive updates. SIZE/CONVENIENCE: 5 Stars. Excellent Performance I am fanatical about tire pressure, generally, and specifically, for my motorcycle which is my sole transport (Ah, SoCal). So, the first commendation for this product is its size. The whole thing, plus a couple (or 3) extra cartridges fits into a sidepouch of my daypack. Spacewise, VERY economical. Are you a purist bicyclist? The whole setup weighs maybe 7oz (Unit + 1 cartridge) and shares the dimensions of, say, a pack of cigarettes. Please don't smoke. OPERATION: 4 1/2 Stars. Above Acceptable Performance Easy to operate, and to understand how to operate. Device mounts to tire (Schrader valve) as advertised (both Bike and Moto tires). Cartridge mounts to device as advertised. Delivers C02 gas to tire as advertised, with a * (see below). Here are my results: A single 16g cartridge took my mountain bike tire from 17psi to 41.5 psi, AND my motorcycle tire from 30 to 36psi. Total psi output from 1 cartridge: about 30 psi. There have to be lots of environmental factors than can grossly affect that result. For instance, the bike tire was inflated indoors/78F while the moto tire was outdoors/100+F. Would that affect performance? Someone out there must have that answer. * The reason the Operation eval only gets 4.5/5 stars is because the valve got stuck in the off position after I swapped in a new cartridge. So tightly closed I was about to go get a pair of pliers to get it to open when it finally gave in to extreme hand pressure. Yet another environ factor mitigating operation? Who knows, but you might want to check back here for updates to see if it is a persisting problem. ADVICE/TRICK: Make sure the cartridge is screwed in fully. I thought I had done so, but was getting a relative trickle of air coming out the valve. In fact, thought cartridge might be spent. So I gave the cartridge another tightening twist, just in case, and upon re-test the air blasted out as one would expect. Word to the wise, and a suggestion for those interested in tweaking air flow delivery. OVERALL: Highly Recommend with a combined rating of 4.75 stars. Look for an update to this review in about 30 days (including, for instance, how long a partially full cartridge lasts while attached to the device when not in use)

Hands down the best CO2 inflator I’ve used.