Im looking for a 12v one really, something that can top up a slow puncture when needed. I have seen the CO2 canisters, but they are one use only.I need to get some idea of which ones are small enough to fit, as I don't want to waste money on one that's too big.
Thanks for all the replies.I've got a new tyre on order and went with an AA branded inflator to keep me on the road until I get it fitted. Can't believe how small it is. Even when still in the box I could it 4 or 5 more of them under the seat. I think I was worrying too much about the size.