Speed by name, speed by nature! It's sleek, sophisticated and, true to its name, speedy! The ultra smooth, fast ride is the result of the combination of denser high quality polyurethane wheels and the unique shock absorbing design of the hubs. This design simply means it glides safely and smoothly - it doesn't 'trip' on the bumps, it absorbs them - the result? Smooth and fast - Speedy+!