Remember how you learned to ride a bike?

You would start around with training wheels then after a while you removed them (or removed only one) and somebody would run after you holding the bike till you could stabilize yourself.

Those days may be over thanks to this new invention by three Purdue University industrial designers.

The bicycle/tricycle, called SHIFT, slowly transforms from a tricycle to a bicycle as the rider pedals faster.

When the rider slows down the bike transforms back to a tricycle.

Very impressive!