I checked out a nifty little book on kids and bikes. Best of all, I sat down in a nice, comfortable chair. It didn't like training wheels. Lower your kid's bike seat down until she can rest her feet flat on the ground. Then tell her to sit on her bike and start walking.
Kids being kids, they start going faster, and coasting a bit farther.
After that, it's a small step for them to start pedaling. We tried it. We liked it. Thursday evening, I was working in the garage. I ran out of the garage.