I tried to take some videos of Drew riding her bike, but she really has a hard time in our driveway.  There's too much of a slope, so when she's headed down she picks up so much momentum that it scares her, and then she isn't quite strong enough to pedal back up the hill.  She does great at Andy's dad's house where their driveway is really big and mostly flat, but it's such a battle for her at our house.