Abec 11 is the best longboard wheel company out. The urethane they use is the best quality possible. Any avid longboarder that has not skated on a set of Abec 11's does not know what they are missing. Once you longboard on a set of these wheels you will never go back. Here is Abec 11's highest performance series of wheel - The Flywheels. Speed, traction, control. You really can have it all in one wheel.