Co2 Air Cartidges

Discussion in 'Beginners' started by sawyer280769, 11 Aug 2012.

  1. sawyer280769

    sawyer280769 Senior Member

    Are these recommended or is a pump better. I know its only a matter of time before I get a puncture and would like some advice regarding whether the Co2 cartriges or a pump is the best for on on the road repair.
  2. TonyEnjoyD

    TonyEnjoyD Veteran

    0-120 psi in two seconds.... Speak for themselves.
    You can get combi pumps or as I have, the little valve only jobbie that attaches to he cartridge when needed and lives nicely in the saddle bag.
  3. numbnuts

    numbnuts Legendary Member

    North Baddesley
    I'm old school so pump, I do have one of those Co2 thing but never used it
  4. OP

    sawyer280769 Senior Member

    Yes I was thinking of the space saving of the cartridges but was a bit dubious of the inflating capabilites. They be able to inflate my tyres to 105/110 psi?
  5. derrick

    derrick The Glue that binds us together.

    One of each. the pump to start you off, the cartridge to finish it off,,
  6. Berties

    Berties Fast and careful!

    Co2 pump for on the road side punctures ,2 seconds and the wheel is hard always ensure tyre is on straight as the speed of inflate is very unforgiving,and a track pump for home
  7. TonyEnjoyD

    TonyEnjoyD Veteran

    16g cartridge will take a road tyre to 120 psi.
    As NumbNuts said, check you're tyre is located properly before inflating, although this should be fine with lower profile tyres and good fitting technique.
  8. zacklaws

    zacklaws Veteran

    Yes they are recomended as I use mine all the time when I need it, but its the carrying of cartridges and how many that is the problem especcially if you like to travel light, get unlucky and have a few punctures and run out of cartridges and the inflator is then worthless so I always carry a small pump as a backup. But if my bike was able to hold it securely, then my first and only choice would be my long high pressure frame pump as that only needs a reasonable amount of strokes to get up to 120lbs without any effort.
  9. TonyEnjoyD

    TonyEnjoyD Veteran

    As this is a beginners section I'll expand ( no pun intended)

    This is assuming normal, not tubeless.
    When you put the new/repaired tub in, start the tyre at the valve the put the valve area on the ground and apply pressure with your foot pushing the rim toward the ground. This keeps the bead out of its groove in the I'm until re-fitting is complete.

    Before inflating, push he valve stem back into the tyre so that the thick part of the tube at the base of the valve goes inside the tyre rather than topping the tyre from seating correctly.
    Then pull the valve out a bit and if threaded, apply the ring-nut.
    The tyre bead should sit nicely into the rim and te often found indicator line will align all the way round the tyre ON BOTH SIDES.
    (if you ave one and the time, a couple of pumps with your backup mini pump will fill out the tyre)
    You should be safe to inflate using Co2 now

    On the question, does it make a difference?
    Last year out on a very hilly 2-day 170 miler, I got a thorn flat 10 mile in.
    Trying to save cartridges, I took the tyre up with a mini-pump and 5 mile on got a snakebite flat.
    Another new tube and the Co2 sharp fixed that.
  10. ufkacbln

    ufkacbln Guest

    There are certain mathematical rules which apply to cycling. The most common is the N+1 bike ownership theorem

    Less known is the N-1 theorem where N is the number of cartridges you have and N-1 is the number you need.
  11. The cartidges seem cheap enough but how do you use them on the valve, do you need any sort of adapter, looks like a good way of saving some weight
  12. byegad

    byegad Legendary Member

    NE England
    I use them and they are a boon. Either to re-inflate after swapping the tube or to get a soft tyre home for a repair they are great.
    They are light enough to carry along with a small pump, used only to inflate the tube before fitting the tyre. However I find CO2 fair leaks through rubber so I deflate the tyre after getting home and refill with my track pump.
  13. ufkacbln

    ufkacbln Guest

    Firstly there is a problem with the sudden decrease in temperature when a cylinder discharges. For this reason there are two main options

    The first is a contained system:

    Others either have a naked cylinder with a screw on top that also pierces the cyclinder:


    Others have some form of insulation around the cylinder

    Finally are the combination pumps such as this one where the hose unscrews from teh pump ad acts as the inflator for the cyclinder, or screws into the pump for normal pump use:


    Take your choice, but be aware that all is not as easy as it seems ..... there are a variety of cyclinder sizes, both threaded and unthreaded (even the size of the thread) and compatibility issues exist
  14. I have googled them and can see the cartidges but not the holders and they do look like an essential piece of kit out in the countryside, any places where I could buy them would be greatly appreciated
  15. MontyVeda

    MontyVeda a short-tempered ill-controlled small-minded troll

    bearing in mind that when the cartridge(s) run out, it's useless, so a back up mini pump will always be worth having. If weight is the issue, just take the mini pump :thumbsup:
    Dangermouse likes this.
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