CO2 pump: Do I need a manual backup?

[deckertim]

This seems to me to be the strangest of threads.
I can understand someone using Co2 cartridges and I can understand someone using a pump.
What I'm failing to see is the need for both
Carrying Co2 negates the need for a pump and similarly t'other road about.
But the thing with a pump is you have endless amounts of air,so why bother with the Co2.
Am I missing something?

I carry both. CO2 is great for saving time which may be important on an Audax ride or similar. The manual pump is good for adding a bit of air to a new tube, or finding a puncture.

I'm a trendy consumer. Just look at my MotoG3 using hovercraft full of eels.

[reohn2]

I carry both. CO2 is great for saving time which may be important on an Audax ride or similar. The manual pump is good for adding a bit of air to a new tube, or finding a puncture.

I'm a trendy consumer. Just look at my MotoG3 using hovercraft full of eels.

Do you really need to save what can only be <5 minutes on an Audax ride?

[deckertim]

I carry both. CO2 is great for saving time which may be important on an Audax ride or similar. The manual pump is good for adding a bit of air to a new tube, or finding a puncture.

I'm a trendy consumer. Just look at my MotoG3 using hovercraft full of eels.

Do you really need to save what can only be <5 minutes on an Audax ride?

You haven't seen how slow I ride[emoji1]

I'm a trendy consumer. Just look at my MotoG3 using hovercraft full of eels.

[reohn2]

You haven't seen how slow I ride

[Cunobelin]

Theres also the option of purchasing a dual purpose pump that allows use of co2 catridge but also acts as a standard hand pump. Two functions in one, so backup if out of co2.

Fantastic! But where do I find one in the UK?

There are several options, I use the Lezyne Pressure Drive


The other advantage is that a 16g cylinder can under-inflate larger tyres,so it is handy to "top up" the tube

[smcknighty]

I have the lezyne pressure drive and can confirm that it causes the behaviour mentioned earlier - e.g it removes removable core valves when you undo it. Makes for an interesting experience co2 or no co2. Luckily someone I stopped to help pointed out the valve tightener on the mini tool I had.


I'm a trendy consumer. Just look at my wobbly bog brush using hovercraft full of eels

[Annoying Twit]

I use this pump for when I'm out: http://www.leisurelakesbikes.com/p/1430 ... 0wodhgUPGg

It goes up to 120psi, though I never pump my tyres up that far. I like the fact that it has a little pressure gauge that pops out when you telescope it. It seems to pump the tyres up fast enough. Not as quick as my Joe Blow pump at home, but then the size is very different. It wasn't cheap for a pump, but I think it works very well. Maybe not fast enough for racers who want to shave those precious seconds from an on-road puncture repair.

[old_windbag]

Fantastic! But where do I find one in the UK?

Sorry for late reply to this but the lezyne variant is easily available from wiggle and others, there is also birzmann and I'm sure umpteen other similar products.

Think this may be as per Cunobelins.

http://www.wiggle.co.uk/lezyne-pressure-drive-cfh-c02-pump-with-free-cartridge/

Regarding valve body removal my topeak warns of this and advises how to avoid it to some degree.

[millimole]

I carry both. I would normally use the traditional pump, but in the dark / wet / dark&wet I would use the CO2 in order to get going more comfortably.
Innovations used to make a dual purpose pump

I'm a trendy consumer. Just look at my wobbly using hovercraft full of eels.

[Mattyfez]

Both, as above, of its dark /wet /numb hands etc.
Also I only carry one cartridge, so if I mess it up I have a back up.