Fast flat changing and how to get faster.

I think there's a recent video on the site, and it probably covers this, though I haven't watched it so I can't say for sure.  But it sounds like you had a pinch in the tube when you inflated it and that was why you flatted again.  A couple pointers to help you out.  Before trying to work your new tube around the rim, orally inflate it a little at that point rather than after you have it in place.  You'll find it will go in and stay in place much better rather than falling out like you experienced.  It's very difficult to put in a completely deflated tube.  If possible (this takes a little hand strength) when you seat the bead of the tire on there, try to roll it on with your hands rather than using a tire iron.  That's easier said than done with some tires, and some people just don't have the hand/thumb strength for doing this.  Then, when everything is back together, push the valve in and pull it out a couple times to make sure it is seated.  Work your way around the entire tire squeezing it on both sides and looking for any portions of inner tube that are sticking out beneath the tire bead (you shouldn't see any tube).  This will make sure that the tube is properly seated inside the tire. 

Lastly, while back at home, check your rim to make sure that your rim tape is good and that nothing sharp (like the end of a spoke) is protruding into the tube.  An old wheel might suffer from that problem.

More tire changes = faster changes.  Once you've done it a few more times, you will breeze through a change. 

Practice, practice, practice.

Do drills just like you drill everything else.  Through this you'll find little tricks and things that will speed up the process.

First, two good (like Pedro's) or three regular levers.  Before I splurged on the Pedro's levers, I have no idea how many levers I snapped, especially if I was trying to work quickly.

Beyond that it is all about practice, however if you are practicing for speed I would do this at home or when you have patches or another tube for backup.  As you've discovered, a fast change is worthless if you are on your last tube and puncture it...

Shane

Some suggestions:

* Put the air in the tube orally before you even put it in the tire.
* Push the valve through the hole, and then put the tube in the tire, not on the rim.
* Push the valve up into the tire when you start the bead there.
* Don't use levers to get the tire back on the rim unless you absolutely need to.
* Check to make sure the tube isn't caught under the tire bead (push the bead back and look for the tube) before you inflate.

Hope that helps.

I spend one weekend practicing and I'll change my tube 10x minimum. I have my kids time me and try to go as quickly as I can. Like others say practice and more practice for me is really the key. In top form I can go sub 4 minutes.

Thanks for reminding me I need to spend some time practicing soon.