If you want to get her riding quickly and easily, just take the pedals off her bike at the same time you remove the training wheels.

She can push the bike along with her feet, with the goal of extending her glide with every push.

Once she's picking up her feet and gliding easily a good distance, she has learned to balance the bike and is ready for pedals.

All that is necessary for the triumph of evil is that good men do nothing -- Edmund Burke