I have a CO2 inflator on my race bike and a pump which will really inflate to high pressure on my go-to road bike. I was in a race once where I had 2 flats and 1 CO2 shot, I did not finish that race. The big advantage to CO2 for the average roadie is that you can get good pressure in the tire quickly but a road morph pump will also do the job over and over again.