Advertise on Bikeforums.net



User Tag List

Results 1 to 25 of 25
  1. #1
    Chi
    Chi is offline
    Rides with Cows Chi's Avatar
    Join Date
    Apr 2003
    Location
    Fixing a flat
    My Bikes
    Trek 7000
    Posts
    1,232
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    What size CO2 cartridges?

    I know there are different sizes, so what size is the most appropriate and economical choice? Would a 12g cartridge work, or do I need a 16g?

  2. #2
    bike/raft DrGonzo's Avatar
    Join Date
    Jul 2002
    Location
    Western Colorado
    Posts
    261
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    whatever fits your bag best Either one will work fine
    practice, practice, practice...
    Last trail to kick my ass: Eagle's tail

  3. #3
    Chi
    Chi is offline
    Rides with Cows Chi's Avatar
    Join Date
    Apr 2003
    Location
    Fixing a flat
    My Bikes
    Trek 7000
    Posts
    1,232
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Sweet! Picked up a 15 pack of 12g's for $8 at Walmart.

  4. #4
    I am a lonely visitor RegularGuy's Avatar
    Join Date
    Feb 2002
    Location
    Where even Richard Nixon has got soul
    My Bikes
    Michelle Pfieffer, the Carbon Fiber Wonder Bike: A Kestrel 200 SCI Repainted in glorious mango; Old Paintless, A Litespeed Obed; The Bike With No Name: A Bianchi Eros; RegularBike: A Parkpre Comp Ltd rebuilt as a singlespeed.
    Posts
    2,630
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Be advised that it may take as many as 3 of those 12g cartridges to pump a mountain bike tire up to a decent pressure.

    I use one 12g cartridge on a road bike tire and get about 90 psi out of it. On my mtb I figure three of the same cartridges will give me 45 psi or so. Maybe you could limp home on 2 cartridges worth of gas.
    Religion is a good thing for good people and a bad thing for bad people. --H. Richard Niebuhr

  5. #5
    Chi
    Chi is offline
    Rides with Cows Chi's Avatar
    Join Date
    Apr 2003
    Location
    Fixing a flat
    My Bikes
    Trek 7000
    Posts
    1,232
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    So even if I had 16g cartridges, I'd still need about 2 of those?

  6. #6
    bike/raft DrGonzo's Avatar
    Join Date
    Jul 2002
    Location
    Western Colorado
    Posts
    261
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    3? Jeez, when i was riding awhile ago i had a total flat, i put in a 12g cartridge of air and had plenty of air to make it back home, of course by the time i made it back it was totally flat again but oh well!
    practice, practice, practice...
    Last trail to kick my ass: Eagle's tail

  7. #7
    Chi
    Chi is offline
    Rides with Cows Chi's Avatar
    Join Date
    Apr 2003
    Location
    Fixing a flat
    My Bikes
    Trek 7000
    Posts
    1,232
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Ok found this on the Performance website:

    Tire inflation capacities: 700x23-94PSI. 700x28- 90PSI. 26x1.5- 41PSI. 26x1.95- 32PSI. 26x2.125-28PSI.

    So I guess we can limp home on one.

  8. #8
    Senior Member cyclezealot's Avatar
    Join Date
    Sep 2001
    Location
    Fallbrook,Calif./Palau del Vidre, France
    My Bikes
    Klein QP, Fuji touring, Surly Cross Check, BCH City bike
    Posts
    13,144
    Mentioned
    0 Post(s)
    Tagged
    1 Thread(s)
    I trust my trusty pump.. Only use I'd have for co2 cartridge, as a spare to a spare.

  9. #9
    Senior Member Cipher's Avatar
    Join Date
    Sep 2002
    Location
    Minnesota, U.S.A.
    My Bikes
    LeMond Victoire
    Posts
    561
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    If you do use CO2 Cartridges to fill your tire, when you get home be sure to deflate it, and re-inflate the tire with a regular tire pump. (CO2 apparently leaks much faster through the tube wall than regular air does). Go figure...
    Speed Kills...It kills those that don't have it!

  10. #10
    Kev
    Kev is offline
    Senior Member
    Join Date
    Nov 2001
    Posts
    1,652
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I used to think that way Cyclezealot then I picked up one on sale, I love them now I carry 4 Co2 cartridges with me, I figure that should get me home unlesss I have EXTREMELY bad luck.

  11. #11
    I ride a REAL Schwinn!
    Join Date
    May 2002
    Location
    NH, USA
    My Bikes
    Lemond Nevada City (stock), '00 Schwinn Moab 3 (very upgraded)
    Posts
    607
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Chi,

    I pick up a box of 12gram cartridges now and then at Wally world for real cheap and use them in my CO2 pump. I've found that one will give the tire enough pressure to get home on. I usually ride with one in the pump and one to two in the seat bag with it. On longer rides, I carry a manual pump on the bike in case I run out.

    -Moab
    '00 Schwinn Moab 3 - XTR/XT/Thomson/Rhyno Lites/Skareb Super
    Lemond Nevada City - Almost Stock!

  12. #12
    Chi
    Chi is offline
    Rides with Cows Chi's Avatar
    Join Date
    Apr 2003
    Location
    Fixing a flat
    My Bikes
    Trek 7000
    Posts
    1,232
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thanks for the responses and tips everyone! Learn something new everyday.

  13. #13
    Senior Member roadrage's Avatar
    Join Date
    Dec 2002
    Posts
    118
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    The Innovations Big Air canister works well for mountain bikes, as it fills two 26" tires, so even if you have some problems, it ought to at least fill one completely. It is about the size of two 12 or 16 gram CO2 cartridges. It only works on threaded inflators though, so that might be an issue for some.

  14. #14
    Clydesdale, for now. belfast-biker's Avatar
    Join Date
    Apr 2003
    Location
    Belfast, Sunny Northern Ireland!
    My Bikes
    Giant Escape M2
    Posts
    4,299
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Originally posted by Cipher
    If you do use CO2 Cartridges to fill your tire, when you get home be sure to deflate it, and re-inflate the tire with a regular tire pump. (CO2 apparently leaks much faster through the tube wall than regular air does).


    Any scientific references for this?
    Fat man trying to reform. slowly. :)
    START 330lbs
    NOW 262lbs
    TARGET 168lbs

  15. #15
    Clydesdale, for now. belfast-biker's Avatar
    Join Date
    Apr 2003
    Location
    Belfast, Sunny Northern Ireland!
    My Bikes
    Giant Escape M2
    Posts
    4,299
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Originally posted by Chi
    I know there are different sizes, so what size is the most appropriate and economical choice? Would a 12g cartridge work, or do I need a 16g?

    Depends on price.


    One 16g canister fills my 700x28 tyre quite nicely, certainly enough for a safe journey home.

    I take a second, just in case. But how often am I gonna get a flat?
    Fat man trying to reform. slowly. :)
    START 330lbs
    NOW 262lbs
    TARGET 168lbs

  16. #16
    Chi
    Chi is offline
    Rides with Cows Chi's Avatar
    Join Date
    Apr 2003
    Location
    Fixing a flat
    My Bikes
    Trek 7000
    Posts
    1,232
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Just got a flat 2 days ago on a San Francisco Golden Gate ride. Couldn't commute this morning coz I didn't catch it till today ... had to drive.

  17. #17
    Senior Member MtnBikerChk's Avatar
    Join Date
    Aug 2001
    Posts
    307
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    FYI - kmart carries 12g carts by the case - I forget what I paid but it was like $.30 each (it's not on their website you have to go there)
    Come visit my SEX arena at IRON MAGAZINE.

    Come ride the Monkey.

  18. #18
    Kev
    Kev is offline
    Senior Member
    Join Date
    Nov 2001
    Posts
    1,652
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I know I bought a 25 pack of them last time at wallmart for $12 for teh 12 gram Co2, not found any place that sells 16g by the case yet.

  19. #19
    Senior Member Cipher's Avatar
    Join Date
    Sep 2002
    Location
    Minnesota, U.S.A.
    My Bikes
    LeMond Victoire
    Posts
    561
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Originally posted by belfast-biker
    Any scientific references for this?
    Paraphrased from another post a guy made on another cycling website... (I have no personal experience with this. The one time I've used a CO2 cartridge to inflate a flat, I had to add some air with a pump when I got home because I was under inflated on one 12g. cartridge).
    Last edited by Cipher; 05-05-03 at 10:48 PM.
    Speed Kills...It kills those that don't have it!

  20. #20
    Senior Member Jim311's Avatar
    Join Date
    Dec 2002
    Location
    Gainesville, Florida
    Posts
    1,791
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I use the 12 gram one because they're cheap and easily available.
    My money pits:

    Cannondale Jekyll 500 with Avid Mechs and Sun DS2 rims with XT disc hubs.

    Cannondale F900 with SRAM XO shifters/derailler, Mavic X3.1 tubeless wheels, Avid Mechs, Race Face Next LP cranks, Time ATAC pedals, SRAM levers.

  21. #21
    Kev
    Kev is offline
    Senior Member
    Join Date
    Nov 2001
    Posts
    1,652
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    12gram threadless are easy to find anywhere.. if you are out on the road bug a starbucks they even have them

  22. #22
    Chi
    Chi is offline
    Rides with Cows Chi's Avatar
    Join Date
    Apr 2003
    Location
    Fixing a flat
    My Bikes
    Trek 7000
    Posts
    1,232
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Really?

  23. #23
    Kev
    Kev is offline
    Senior Member
    Join Date
    Nov 2001
    Posts
    1,652
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Star bucks uses them for their whip cream can things.. not sure of exact name.. THey don't actualy sell them, but if desperate I'm sure they would give you one.

  24. #24
    Senior Member Jim311's Avatar
    Join Date
    Dec 2002
    Location
    Gainesville, Florida
    Posts
    1,791
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    It's not CO2 but nitrous oxide I believe. It would still do essentially the same thing. Except you could inhale the nitrous and get a fuzzy head
    My money pits:

    Cannondale Jekyll 500 with Avid Mechs and Sun DS2 rims with XT disc hubs.

    Cannondale F900 with SRAM XO shifters/derailler, Mavic X3.1 tubeless wheels, Avid Mechs, Race Face Next LP cranks, Time ATAC pedals, SRAM levers.

  25. #25
    Chi
    Chi is offline
    Rides with Cows Chi's Avatar
    Join Date
    Apr 2003
    Location
    Fixing a flat
    My Bikes
    Trek 7000
    Posts
    1,232
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •