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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 comments

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charlie bravo [50 posts] 4 years ago
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2 cartridges - and I always still take a mini pump. Just ot be safe  4

Think I pay about 2 quid per cartridge from the LBS

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Spofferoonie [43 posts] 4 years ago
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I concur, two cartridges is about right - I don't think they're very expensive from anywhere.

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Gkam84 [9086 posts] 4 years ago
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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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jimmo62 [55 posts] 4 years ago
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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....

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step-hent [722 posts] 4 years ago
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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.

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arrieredupeleton [576 posts] 4 years ago
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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...

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SideBurn [890 posts] 4 years ago
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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!

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Blackhound [439 posts] 4 years ago
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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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giff77 [1251 posts] 4 years ago
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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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Arthur Scrimshaw [67 posts] 4 years ago
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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.

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Raleigh [1665 posts] 4 years ago
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Don't know about any migrating  7 , but I do know that it's advisable to repump the tyres to their former 11 bar glory when you get home.

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schmiken [36 posts] 4 years ago
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russyparkin [570 posts] 4 years ago
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im a maverick! one tube, one cartridge, no pump, schwalbe zx ultremo.

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mr-andrew [300 posts] 4 years ago
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2 cartridges, no pump. And I concur with the vote for tyreinflators.co.uk

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The _Kaner [770 posts] 4 years ago
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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....

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russyparkin [570 posts] 4 years ago
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thekaner, im the thee shall not mention the p word club

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giff77 [1251 posts] 4 years ago
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Kaner - you are a brave - I salute you!!! Challenging the wrath of the pixies

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Mat Brett [624 posts] 4 years ago
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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.

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Raleigh [1665 posts] 4 years ago
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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  39

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John G [55 posts] 4 years ago
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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 ...

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_SiD_ [162 posts] 4 years ago
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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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Arthur Scrimshaw [67 posts] 4 years ago
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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  3