Warning: Great review followed by a video with some nasty trike/training wheel crashes.
"We bought two Striders for our 2.5 year old twins who had been really struggling with trying to peddle a tricycle. Within a couple of days they were zipping down the slight incline on our gravel driveway, and really balancing with no adult training required.
We saw them crash many times trying to negotiate riding a tricycle, but they really learned to balance quite easily on the Strider bike. It is well and thoughtfully engineered, strong, but light in weight for small kids.
5 out of 5 stars! Highly recommended!!!!" -- (Jay in Ohio)