's Forum Archives - Components

Archive Home >> Components(1 2 3 4 5 6 7 8 9 10 )

Do I need a hand pump w/CO2??(3 posts)

Do I need a hand pump w/CO2??dgangi
Oct 17, 2003 8:42 PM
I just purchased a CO2 cartridge system for my road bike because I really didn't like the thought of having to dangle a pump on my frame somewhere. My frame is pretty small (54cm) and with the 2 water bottle cages on it there was no place to mount a pump except to (a) hang it off the side of the bottom water cage (hate that location as it can be knocked off by lazy hands or feet) or (b) mount it to one of the rear seat stays. Regardless, pumping up a bike tire to >100 psi sucks, especially in the Arizona heat.

Is there any reason I would need a bike pump if I carry 16g CO2 cartridges? Each of those is supposed to inflate a 700c tire to >120 psi, which should be plenty of air.

I pretty much have to carry a pump with my mountain bike, as there aren't any CO2 cartridges I know of that can inflate a 2.1 bike tire (at least none that are cost-effective). But with a skinny 700c tire, the 16g CO2 should do just fine.

Am I missing any reason to carry the pump?

I don't.Spoke Wrench
Oct 18, 2003 5:30 AM
I just pre-inflate my replacement inner tube by mouth to give it a little shape before I reinstall it into the tire. Then I pressurize it with the CO2.
re: Do I need a hand pump w/CO2??LC
Oct 18, 2003 2:55 PM
As long as you carry at least one extra CO2 cartridge you should be fine unless your very unlucky. You might also get one of those little presta valve adaptors so you can use a gas station pump too.

I only carry a pump if I am going to be way out there in the sticks with no support available.