Sydwynder wheels are designed to allow the rider to ride with complete control in any direction and also provide the smoothest slide possible. The wheels will also last much longer than normal slide wheels as they are always rolling and never actually sliding. This makes it almost impossible for the wheels to flatspot, resulting in the same smooth and controllable slide everytime.
Sydewynder wheels not only look awesome, but they work very well. To help give you a better idea of how the Sydewynder preforms and feels here is a detailed description to answer your questions! The patented design was made for many purposes such as saving urethane, rolling in any direction, providing the smoothest slide, and many more. To ensure the wheel rolls smoothly forward and backward and remains stable, each 1 of the 36 83a duro urethane rollers has a barrel shape and every other roller is staggerd around the wheel. The combination of the barrel shape lined up with the staggered rollers allow the out side of the wheel to form a perfect circle. Take a look at these pictures to help visualize it. The rollers have enough friction within them that they take quite a bit of force for them to roll sideways just like getting a normal wheel to slide. This ensures that they won't roll when you don't want them too.