Always carry a pump and a patch kit. That's your backup if everything else fails.
If you're doing group rides, carry CO2 and a spare tube. It's not fair to hold up the rest of the group while you're taking 15-20 minutes to do a 5 minute job.
If you're on your own, it's your call.
Speed comes from what you put behind you. - Judi Ketteler
Sindyeli,
Welcome to TE and to the wonderful world of road riding! I'm pretty much with everyone else: I carry a tube, a patch kit (periodically check that the tube of glue hasn't dried out), and a pump.
Whatever you use (CO2 or frame pump), make sure that you can use it to get your tire up to the appropriate PSI. Ideally you'd perform this experiment in the comfort of your own home rather than find out that it doesn't work when you're on the road. I had a lovely little Crank Brothers Pump that I borrowed from my Mtn. Bike. Unfortunately, when I was on the road, I discovered that I had neither the time or energy to get my tires up to 120 psi. I now have a lovely Road Morph pump that has served me quite well.
Mr. Silver,
I ride very, very small frames (a 47 cm Trek and a 40 cm Merlin), and I had a heck of a time figuring out where to mount my Road Morph. Ebay came to the rescue! I bought a Blackburn frame pump holder that attaches behind the water bottle cage. The pump is on the side of the down tube, and I can use two water bottle cages! The Blackburn pump holder is designed to hold a pump with a larger diameter than the Road Morph, but I was able to use a bit of padding and strips of an old inner tube to make it work.
- Melissa
I'll get back on the bike soon, I promise!
Depending on the length of the ride and the crappiness of the roads I carry one or two tubes and CO2 cartridges, no pump. I switch tubes and patch at home. If I "expected" to need 3 tubes I'd carry a pump instead.
But I always carry a cell phone, and in my neck of the woods I can either catch a bus, call home or call a taxi if necessary.
But this is also because I rarely flat (pretty good roads and Conti GP 4000 tires which have a good rep for flat resistance) and don't have a good frame pump. I've helped others with an CO2 cartridge or tube more often than I've used it myself.
Winter riding is much less about badassery and much more about bundle-uppery. - malkin
1995 Kona Cinder Cone commuterFrankenbike/Selle Italia SLR Lady Gel Flow
2008 white Nakamura Summit Custom mtb/Terry Falcon X
2000 Schwinn Fastback Comp road bike/Specialized Jett
2 tubes, patch kit, CO2 cartridge, and pump here. I have a really small pump that I can fit in my back pocket. Can't remember the name of it. On my Bike Friday, that has a rack, I've strapped a Road Morph onto the underside of the rack with bungies.
I carry 2 tubes and 2 cartridges. I can't mount a pump on my frame because of the design and size. When I had my Trek, I had a Road Morph pump on the down tube.
I don't waste time with patching. Tubes are cheap. Plus, I've only had 3 flats in 8 years...
I carry 2 tubes, a patch kit and an Axiom pump that is a combination hand pump and CO2 cartridge inflator. I also keep dollar bills handy in case my tire is punctured and I can slip the dollar bill in between the tube and tire to get me home.
If you decide to carry a compact hand pump, know that you could snap off the valve if you are tired and you are struggling to inflate it to pressure. It happened to my mtb.I like the Topeak Master Blaster road pump because it has a retractable hose which makes it unlikely that you'll break off the valve during inflation.