CO2 Bike Tire Inflator, Quick & Easy Presta and Schrader Valve Compatible Bicycle Pump for Road and Mountain Bikes Include Sleeve and No CO2 Cartridges

Perfect for what I needed it for.

Great product

Works great.

I honestly didn’t know about inflating camera tubes with CO2 until recently. This is something that will help me minimize load when going riding, only taking a small CO2 cartridge and this valve, therefore eliminating the extra weight and size of a bicycle pump. Also, the quickness to inflate a tube with this is to be considered.Now, this valve worked extremely good during the tests I did. It works with both types of bike valves, including Presta, which is the one I use.

Okay, ya know how when you use a standard bicycle pump to air up your tire, and while disconnecting from the pump you lose half the air around the stem that you just put in there? This item doesn't do that. In fact it's pretty cool how it works; you insert the Co2 cartridge onto this small thing, then it attaches to the stem, and you turn the lever (slowly! Cuz it will fill the tire in a bast!) Instant fill up! And, I run huge tread mountain bike tires and there is enough air in the small cartridge to fill one tire near to bursting; actually I had to let about four lbs. out.. so, skinny tires be careful. then you shut the lever off, and remove. This is a simple device. It's light but well made, and its life saver.WORTH MENTIONING: There is something about compressed air that causes the air to dissipate in just a couple of days (I think it's got something to do with the temperature of the Co2 being being so cold? Not sure, BUT, when you get home use your pump to fill the tire back up.

I bought two, one broke on first use. How can I trust the other on a ride. Not the kind of oh crap gear you can keep on a bike. Missed return window by a week.

This worked great when I recently had a flat on the road. Takes up very little space in my small saddle bag.

very hard to screw on. After using a few times it quit working.