My 3 yr old will be 4 next month, she loves her tricycle but she's outgrowing it. She has her sister's old Walmart 14" bike but she's having trouble riding it. She rode every 12" bike in the bike shop I went to this summer when shopping for my bike but had problems with the cheap 12" bikes at Walmart. The problem is I need something cheap, I can't find a thing nice on Craig's List but there seems to be a much larger selection of tricycles. She can fly down the sidewalk on her little trike and she likes to ride backwards which she can't do on the bike. So, do I keep searching for a great deal on a nice bike or find a larger tricycle? She has no interest in a balance bike she wants to pedal.