CO2 Cannisters and Head

thefd

Can anyone recommend a decent make and supply of co2 cannisters and head to attach to presta valve? Looking on-line confuses me as there seem to be many, some are threaded some are not.

Searching on here brings up a thread from 2007 but I assume there is more options available now. What does everyone else use and where do they buy from?

Does a 16g cannister fill one tyre (700 X 23) to 100psi?

t.m.h.n.e.t

Supposedly 16gm cartridges rate upto 130psi x1 tyre but that's probably a little bit of creativity with the figures.

I have One of these bought with 5 cartridges a while back. Used it twice on Sunday(not my punctures) and impressive it was. Put more than enough pressure back into a tube that was previously running 110.

Polonium.

Had no problems as of yet with the Genuine Innovations pumps and cannistors

godders1

I went for something simple (thinking the fancy ones with little plastic levers etc. were likely to break).

http://www.tyreinflators.co.uk/index.ph ... category=8

It takes these carts (although comes with 2 already):

http://www.tyreinflators.co.uk/index.ph ... category=2

100psi shouldn't be any problem (assuming a 23/25mm tyre)

magoo289

+ 1 for Ultraflate from Tyreinflators. I ave used threaded and unthreaded with this inflator. Recommend highly for punctures at roadside.

Gizmodo

I've got a Bontrager CO2 Air Pack, I've only had to use it once but it worked fine. It's small but also has a knob to control the flow so you can shut it off before empty.

godders1

Gizmodo wrote:

I've got a Bontrager CO2 Air Pack, I've only had to use it once but it worked fine. It's small but also has a knob to control the flow so you can shut it off before empty.

You can "control the flow" on even the basic ones.

rickwiggans

And get your cartridges from a catering supplier, not a bike retailer. Less than 1/4 the price.

thefd

rickwiggans wrote:

And get your cartridges from a catering supplier, not a bike retailer. Less than 1/4 the price.

Can you give an example?

warrerj

I've got 1 of these.

I'm really happy with it and does everything you need it to do. 1 x 16g cartridge inflates a 700 x 23 or 25 tyre to around 100 psi (haven't tested to get the actual figure).

I also got a box of 16g cartridges from the same website. Ingore what they say about only using GI cartridges with thier inflators the non branded onse work just as well.

rickwiggans

TheFD wrote:

rickwiggans wrote:

And get your cartridges from a catering supplier, not a bike retailer. Less than 1/4 the price.

Can you give an example?

From memory Wiggle are about £10 for six. I've had them from Catering and Leisure supplies Ltd for £16.99 for 30. Tyreinflators are the same price, or were.

Kendal Black Drop

TheFD wrote:

rickwiggans wrote:

And get your cartridges from a catering supplier, not a bike retailer. Less than 1/4 the price.

Can you give an example?

I've never used them as I haven't got a CO2 inflater but whilst reading another thread on the same subject someone recommended buying them from tyreinflators.co.uk.

fat_cat

Genuine Innovations work fine for me.

warrerj

FYI http://www.co2cartridges.co.uk and TyreInflators.co.uk are the same people with 2 websites.

Gizmo_

I've forgotten almost everything I ever learned in Chemistry (except the things involving brassieres) but can anyone confirm my suspicion that a tyre filled with CO2 will lose pressure slower than one filled with the usual mix of O2, N3, Ar, Xe etc?

Are the canisters 'pure' CO2?

desweller

Get a frame pump. You'll need a decent pump anyway when you run out of canisters 50 miles from home. And it saves you 60, maybe 90 seconds of inflation time at most.

t.m.h.n.e.t

DesWeller wrote:

Get a frame pump. You'll need a decent pump anyway when you run out of canisters 50 miles from home. And it saves you 60, maybe 90 seconds of inflation time at most.

The simple trick is not to run out of cartridges.

desweller

T.M.H.N.E.T wrote:

DesWeller wrote:

Get a frame pump. You'll need a decent pump anyway when you run out of canisters 50 miles from home. And it saves you 60, maybe 90 seconds of inflation time at most.

The simple trick is not to run out of cartridges.

I don't have to worry about running out of anything - I'm not cycling to the moon.

t.m.h.n.e.t

Neither do I.

rickwiggans

Gizmo_ wrote:

I've forgotten almost everything I ever learned in Chemistry (except the things involving brassieres) but can anyone confirm my suspicion that a tyre filled with CO2 will lose pressure slower than one filled with the usual mix of O2, N3, Ar, Xe etc?

Are the canisters 'pure' CO2?

Depending on the grade of rubber in the tube, a tube inflated with CO2 will deflate much faster. I use conti tubes, and in 3 days they are almost flat.

Mettan

I use the GI Microflate Nano with generic 16g threaded cartridges (from Ebay) - cheapish, 5 for £8 IIRC - I get about 90-100 psi out of each cartridge.

warrerj

DesWeller wrote:

Get a frame pump. You'll need a decent pump anyway when you run out of canisters 50 miles from home. And it saves you 60, maybe 90 seconds of inflation time at most.

I take 3 canisters and 1 tube out with me on a 60 mile (ish) ride. If I run out of canisters (i.e. have more than 3 flats in that time my sense of humor will have long gone and I'd be on a train, bus, taxi or walking home!