Originally Posted by
khutch
Or when the pump breaks! Every time a thread like this starts someone will post that they use CO2 because every time they needed to use their pump it was broken, and then someone else will post that they use a pump because every time they needed to use their CO2 it was broken. So, since I am not a weight weenie I have adopted the only logical strategy based on the collective experience: I carry one of each and if they are both broken, I call my wife to pick me up. If my phone is broken too, I walk. If my leg is broken too, well I'm having a real doozey of a bad day, aren't I?
Ken

When you clean your bike, check that the pump is functioning, the problem with CO2 is more like Jack. Jack carries 3 tubes and 3 cartridges, goes for a 40 mile loop ride, after 10 miles, he comes upon his buddy, who has a flat, uses a cartridge there, because he doesn't want to wait for buddy to pump up the tire. After 20 miles, he gets a puncture and starts to fix it, the cartridge doesn't go on right and dumps it's load into the air, uses the third cartridge, goes another 5 miles, gets a flat, swaps the tubes and then gets a Homer Simpson moment, finds out that a 5 mile walk of shame is about 4 miles, 5,270 feet further then you want to walk in road clipless shoes.... Yeah if you carry only CO2, then carry extra cartridges.