LEZYNE Trigger Drive Bicycle Tire CO2 Inflator & 16 Cartridge, Twin Chuck Head, Presta & Schrader Valves, Neoprene Sleeve, C02 Tire Inflator

4.0 out of 5 stars

By Bob - Reviewed in the United States on February 19, 2015

Worth it

I like this because it is metal, small, controllable, and o-rings. The first thing I did when I got it was to let the air out of my front tire to test it. For those who have not used this before, you should know that to trigger it required me to cross my thumbs on the outside of the tire and clasping my fingers over the canister and trigger and squeeze pretty hard. The (shrader) valve will sink in from the pressure and you won't hear much of a hiss or rushing air like you would at the gas station air pump. One 16g will fill my 700X35 to about 110psi and I have to let out air to get it to where I need it. One of the canisters I ordered was mostly a dud but would have had enough gas in it to get me home. So It don't hurt to carry 3 and a pump. I tried this 3 times until I had the hang of it. Rumor has it that CO2 molecules leak through the innertube and you have to eventually replace lost gas with air. If that's the case, I will update this if I can. I would have given it a 5 if it had a readable gauge attached but that would be more money and larger item for the seat bag. This is probably as good as it gets for this type system. I didn't want a pump because they wear out when you need it the most and I won't be going out of cell service area too often. One last thing - I think if you screw the inflator onto the valve first and then screw in the canister it is a lot easier. Update: 3 days later I check the tire pressure and; The rumor is true, you will need to refill with air but not that much. The tires at 90psi after I filled with C02 and when I checked it three days later both were near 70psi. IMO Co2 system is only for making roadside emergencies easier.

5.0 out of 5 stars

By Busy Executive - Reviewed in the United States on December 19, 2015

Great little emergency air supply

This is a wonderful item to keep with you on those long bike treks that can be a lifesaver in the event of a tire problem. Compared to a conventional pump, it's way smaller and lighter to carry, and should you need it, it will have you on the road again in just a few seconds. It's a small, solid unit that looks like it would last forever. Machined nicely and precisely, it fits all of the tires I've tried it on easily and securely, operating without leaks or other problems. I've tried three brands of CO2 cartridges and they've all fit perfectly. As other reviewers point out, you need to watch the O-ring. Mine came out the first time I tested it...a thin coating of vaseline seems to have helped it seat better and it hasn't happened since. If you have aging, arthritic hands like mine, it's also a terrific way to inflate your tires without coming the aches and pains a conventional pump causes. You do need a fair bit of strength to operate the trigger, but for me it's easier than the grip and motion a conventional pump requires. I did find that the 16g CO2 cartridges are marginal...definitely recommend the larger 25g ones instead.

5.0 out of 5 stars

By Steve-O - Reviewed in the United States on September 21, 2020

I love these!

With my entire family mountain biking, including kids on mountain bike teams, we need a lot of gear. I have four of these now, and there are reasons I keep buying them... they're super tiny and light, and they are great to use. I know people with inflators that are a little easier to use, but they're HUGE. I know that non-threaded CO2 bottles are cheaper, but the inflators for them are HUGE. This is SO tiny and light... it's worth the trade-offs.

4.0 out of 5 stars

By Keith Dunlop - Reviewed in the United States on December 24, 2018

Works great, but it unscrewed my valve core upon removal.

This is a great light and small CO2 inflator - quick and easy to repair a puncture on the road. The only problem I had is that the inflator seats so well on the presta valve that when I removed it, it partially unscrewed the valve core and I lost about 40 pounds of pressure before I could hand-tighten it. I only had one CO2 cartridge left, so I had to head home not knowing if the valve core would hold. Plus, I was down way too much on tire pressure to ride safely.

4.0 out of 5 stars

By Kupitero - Reviewed in the United States on July 15, 2016

Handy and very good design. Rather vague instructions.

I tried this on my hybrid bike (700 x 28) and got good results with a single cartridge. Since this is my first time with a CO2 inflator, I found the instructions was a bit confusing as it indicated + & - with directional arrows to the left and right. I thought those meant turn the nozzle left or right to inflate or deflate. So the arrows mean to screw on & out -- which is very obvious with the design. How about a simple, "push to inflate"? Since it's very small, very handy and I always carry it during my long rides together with a manual one -- just in case.

5.0 out of 5 stars

By David S. - Reviewed in the United States on October 20, 2016

CO2 Inflator works so well you almost look forward to getting a flat

I purchased this about a year ago and just had to use it for the first time. It worked great! I screwed the inflator onto the presta valve and then screwed the CO2 cartridge in. The ability to partially inflate the tube by pressing and then releasing the trigger is a definite plus - makes partially inflating the tube to ease installation a breeze. While the little neoprene sleeve for the CO2 cartridge does help prevent getting a cold burn from the cartridge, the metal portion of the inflator does still get very cold so using gloves or placing a cloth over the metal might be a good idea. One 16g cartridge was adequate to inflate the tire enough to get me home comfortably.

5.0 out of 5 stars

By Dipo - Reviewed in the United States on October 25, 2015

Perfect design. Best minimalist inflator out there.

Perfect design. Have literally tried every model available. The difference is Lezyne's ingenious thread-on design. Just like Lezyne's pumps, this inflator screws onto the valve stem (presta and shrader) creating a perfect and stable, absolutely airtight seal. Once screwed on, you can thread the cartridge and there is no leakage anywhere. Compressing the inflation mechanism allows perfectly controlled inflation. Just like all minimalist inflator designs, it does get freezing cold, so you will need something to touch this device especially toward the end of inflation. The sleeve only helps a little.

5.0 out of 5 stars

By K. Heinemann - Reviewed in the United States on October 24, 2020

Press trigger works great

I really like this unit. The trigger to start filling is activated by pressing down. So much easier than my old one with a on/off switch. No need to screw onto the valve either. Just open the valve and press then on to fill.