I have one of those cheap Chinese compressors, they are a bit generic and can be found in Army surplus places under all sorts of brand names. A bit bulky to carry on a bike though. Just watch out and make sure your bikes power socket is fused to the right current rating, they can be a little power hungry and they don't have their own fuse. Don't want to melt your own wiring loom! These things are slow as anything and take the gauge to be an indication only, + or - 10 PSI! They are cheap for a reason. Use them for more than ten minutes and they get extremely hot and need a 10 minute cool off period. If you can afford it go upmarket for a bike specific compressor or stick with the little gas canisters (gets my vote).
In my experience it takes two neerly three cannisters to inflate a broad rear tyre and top off with a pump I've run three or four back tyres until bald with professional tyre plug repair and one front , when tyres cost as much as 3 or 4 days pay ! You don't throw them out
can only talk from experience i had a screw in rear tyre which caused puncture,got it plugged by (ride n fit) bike shop paisley and don't even think about it now,ive done about 7/800 mls so far and haven't adjusted my driving style at all well i did for first day or two,as long as its done properly and not just get you home diy i would deffo get it done again.
I recently had a puncture on a basically new rear tyre on my Sprint ST. A local fitter came out, took one look at it and told me it was an easy repair. He did say that you can get a temporary plug and permanent repair. Obviously the temporary is a get-you-home sort of thing, but he never does them; it's either a permanent repair & the tyre will go it's full life span, or a replacement. Not had a single problem with it; hold air just as well when it was new. Bonus: because the tyre is scrubbed in, I could ride like normal without having to worry about extra braking distance etc.
