As long as the c02 has a good seal to the stem it will over power the valve core. For instance you can take a plain air chuck then jam it onto a stem you will get a tire to fill @ only 90psi in the hose. Done this many times when the adapter has gone missing.

C02 cartridges are way over 90psi. @ about 77*F they are around 850psi.

 

Cool. So his assumption was correct.

 

I'm following this thread too...about to buy an inflator tool and want to be sure I get one that actually works!

 

This is one of the best out there. All metal, no cheap plastic parts, easy basic inflater. Can’t go wrong with this one.

 

That inflator looks good, note that it only uses threaded cartridges which are pricey compared to non-threaded. On the moto for em use, this is not so much of an issue. I bicycle a lot and have quite a number of flats, so all mine have non-threaded or threaded rating and I use non-threaded CO2 almost exclusively.

 

I’m just sayin. Spend a little more $ or chance walking when you go flat. Try using slime if you can on the pedal bikes. Once I did, never got flats. Basicly, you get what you pay for. There’s other good reliable non threaded inflaters out there. Maybe its just me, but high pressure and plastic don’t mix well IMO. My post was answering Finecitygirl’s comment.

 

Cheers Werloc, I ordered the Sealey one yesterday. They're motorcycle specific, so ought to do the job fine. It comes in a little case, so I can put patches, glue and other puncture fixing stuff in there too! Hopefully, once I get my new tyres, I won't need to use this kit??

 

LOL, Yes, we spend money on something we hope we never use..... Funny, but very true....LOL

 

Don’t know what your payin for cartridges, but $1 each is to much? Not worth a buck to save your day?

Cyclingdeal Threaded CO2 Cartridges Refills for Bike Bicycle Pump Inflator, 30 x 16g

 

How many of those 16g's does it take to put 15psi in your tires?