evo.com | Powell Peralta Skateboard Wheels > The Powell Peralta Dragon Formula Red Nano Rats AV4 93a Asymmetrical Skateboard Wheels have unmatched smoothness you'll have to feel to believe. Using durable, fast rubber, the Nano Rats deliver an enjoyable ride wherever your board can roll. Grip & Slide Dragons slide on both rough and smooth terrains, and also grip when you need it. This is because Dragon Formula is not just an ordinary mid-90's wheel formula. It has been developed over a ten year period to optimize and fine tune it to perfection. No other wheel can do what these Dragons can. Durability Dragon Formula is not only smooth, fast and slidable, it is also durable. The slidability comes from its unique blend of high performance materials by making the urethane weak so it will slide as the urethane wears away, not creating flats spots. Dragons are very long lasting so they are not only better skating, they are a great value too. Dragon Formula(TM) (DF) Urethane The amazing new Dragon Formula(TM) urethane used to create these wheels is another industry leading innovation from Powell-Peralta. DF-93a Dragons will not only roll over rough terrain, but also grip and slide like 99a and 101a wheels do, so that you can do all your normal tricks and more on the greater range of skate terrains made skateable by its softer 93a hardness. Nano Rats Nano Rats(TM) put both sides of the wheel to work, making skating easier and more fun. It has the outer edge you are used to, a lock-on inner edge, and center set bearings to give you a wheel that will upgrade your ride without changing the balance of your set up. Halfway between Nano Cubics and traditional symmetrical wheels, Nano Rats(TM) provide an easy way to make the Dragon Formula(TM) work even better for you AV4 Shape Radial climb design face / Asymmetrical design allows each side to do its job / "Lock-in" inner face / Center set bearing Medium ride patch | Powell Peralta Dragon Formula Red Nano Rats AV4 93a Asymmetrical Skateboard Wheels 2027 - 52 | Rubber