CO2 inflators

by arrieredupeleton   February 15, 2012  

I've recently dumped the mini-pump in favour of a CO2 inflator and cartridges. How many cartridges do you tend to take with you on say a 60 mile ride? I've been known to get a couple of punctures on shorter rides and would be a little nervous if I had no back up.

Also, does anyone know a supplier of cheap cartridges (16g)?

Thanks

22 user comments

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2 cartridges - and I always still take a mini pump. Just ot be safe Big Grin

Think I pay about 2 quid per cartridge from the LBS

charlie bravo's picture

posted by charlie bravo [47 posts]
15th February 2012 - 16:32

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I concur, two cartridges is about right - I don't think they're very expensive from anywhere.

posted by Spofferoonie [17 posts]
15th February 2012 - 16:34

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What type are you using and is it just the cartridges or do they go into a holder which then attaches to the valve?

I used to use them, but switched back to a pump because of cost, i used to carry one loaded into the valve attachment and one spare

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posted by Gkam84 [8131 posts]
15th February 2012 - 16:38

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Get the cylinders off ebay - much cheaper than LBS and/or branded ones.

I take 2 plus a pump - if you pinch a tube while fitting you lose a whole cartridge. Also the pump allows you to inflate the tube a bit before you fit it.

Having said that I have always been OK with 2 cylinders alone....

posted by jimmo62 [59 posts]
15th February 2012 - 16:43

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I always take a pump even if carrying cartridges - one pump will inflate as many tubes as you like! Cartridges are great for getting on the move quickly but my record for punctures in a single ride is more than double the number of cartridges I could carry, so I carry the pump anyway.

+1 for buying unbranded cartridges - you can pick up a box of 30 for around £17. Do a google search for 16g CO2 cartridges and a bunch of possible suppliers come up.

posted by step-hent [634 posts]
15th February 2012 - 16:49

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Thanks guys. I'm using 16g threaded cartridges with a small air chuck inflator.

I suppose there is no substitute for a pump after all. Don't currently have something that slips into a jersey pocket that well though and don't like them on the frame (the last one disappeared into some undergrowth).

Anybody got any views on this: http://www.ribblecycles.co.uk/sp/road-track-bike/Blackburn-AirStik-SL-Mi...

arrieredupeleton

posted by arrieredupeleton [519 posts]
15th February 2012 - 17:05

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Agree with the Ebay suggestion; I got together with others to buy in bulk. However I only use them for journey to work and events. I would not ditch the pump. I have had problems with the valve freezing and all the air escaping again. Pumps are slow but reliable!

posted by SideBurn [731 posts]
15th February 2012 - 20:38

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I have read somewhere that CO2 inflaters should only be used as an emergency. When home let air out and replace using a track pump. Anybody like to comment if this correct or a load of wotsit's?

This may only be in relation to mtb tubeless set up's as it can turn the sealant into globby gunk.

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posted by Blackhound [434 posts]
15th February 2012 - 21:37

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I carry a couple. Tend to use them when the weather is rubbish and my hands are at risk of dropping off. Always carry a mini pump regardless. There's some really good ones out there. I've one of the blackburn ones can't remember the model and it serves as a get me home. As jimmo says - make sure the tube isn't likely to get pinched.

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posted by giff77 [957 posts]
15th February 2012 - 21:48

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Blackhound wrote:
I have read somewhere that CO2 inflaters should only be used as an emergency. When home let air out and replace using a track pump. Anybody like to comment if this correct or a load of wotsit's?

This may only be in relation to mtb tubeless set up's as it can turn the sealant into globby gunk.


I find that tyres inflated with Co2 go down, sometimes overnight. Maybe the molecules are smaller and migrate through the tube wall?
I always re inflate with a track pump after a repair.

posted by Arthur Scrimshaw [44 posts]
15th February 2012 - 21:59

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Don't know about any migrating Confused , but I do know that it's advisable to repump the tyres to their former 11 bar glory when you get home.

Sir Velo

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posted by Raleigh [1725 posts]
15th February 2012 - 22:46

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posted by schmiken [45 posts]
16th February 2012 - 0:04

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im a maverick! one tube, one cartridge, no pump, schwalbe zx ultremo.

posted by russyparkin [550 posts]
16th February 2012 - 18:00

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2 cartridges, no pump. And I concur with the vote for tyreinflators.co.uk

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posted by mr-andrew [291 posts]
16th February 2012 - 18:19

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No Cartridges, two spare tubes, a Lezyne patch kit and a

http://www.topeak.com/products/Pumps/MiniMorph

Great little mini track pump...lol...fingers crossed that even mentioning anything about p******** will end my 3000kms of having had none....

The_Kaner
FREEEEEEEEDOM!

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posted by The _Kaner [322 posts]
16th February 2012 - 19:35

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thekaner, im the thee shall not mention the p word club

posted by russyparkin [550 posts]
16th February 2012 - 21:21

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Kaner - you are a brave - I salute you!!! Challenging the wrath of the pixies

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posted by giff77 [957 posts]
16th February 2012 - 22:04

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Arthur Scrimshaw wrote:
Blackhound wrote:
I have read somewhere that CO2 inflaters should only be used as an emergency. When home let air out and replace using a track pump. Anybody like to comment if this correct or a load of wotsit's?

This may only be in relation to mtb tubeless set up's as it can turn the sealant into globby gunk.


I find that tyres inflated with Co2 go down, sometimes overnight. Maybe the molecules are smaller and migrate through the tube wall?
I always re inflate with a track pump after a repair.

What? Don't you deflate your tyres after every ride anyway? I do. I let all that stale air out and put a nice fresh lot in before I set off the next time. It makes me much faster.

posted by Mat Brett [1718 posts]
16th February 2012 - 22:25

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Quote:

What? Don't you deflate your tyres after every ride anyway? I do. I let all that stale air out and put a nice fresh lot in before I set off the next time. It makes me much faster.

Can't argue with that. Sounds like Science Thinking

Sir Velo

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posted by Raleigh [1725 posts]
16th February 2012 - 22:27

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Not convinced about that. Nitrogen atoms and oxygen molecules are smaller than CO2 molecules. Nitrogen is used to inflate tyres of racing cars, apparently - if it's good enough for them, it's good enough for me.

For the record, I carry three CO2 cartridges, last lot bought off Ebay - box of 30 for £20 - should last for a few years ...

posted by John G [53 posts]
17th February 2012 - 14:32

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Filled my wife's front with co2 after a flat, then rode home no probs. She took the bike the following week and tyre was flat. I hunted for the hole but the tube was perfect, so there might be something in that theory.

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posted by _SiD_ [178 posts]
17th February 2012 - 20:12

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reading up on it it appears the co2 molecule is soluble in rubber hence the deflation. This is certainly my experience.
Must try the fresh air every ride, I'll compare times Wink

posted by Arthur Scrimshaw [44 posts]
17th February 2012 - 22:05

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