G13 Inline Skate Wheels 8-pack

Enhanced wheels designed for speed skating. These wheels are based on the four-part TR3 system known as "Core improvement" and G13 Polyurethane. The team at Matter laboratories, along with the Powerslide Matter racing group, is exceedingly confident that this wheel will dominate track and road racing for years to come.
The G13 PU provides excellent grip without ever sacrificing roll, while offering impressive pop out of the turns.
This innovative 2015 wheel also incorporates S.E.R.T. technology, an abbreviation for Stored Energy Ring Technology. Neal Piper, the engineer responsible for the wheel, best explains this technology:

"One of the most crucial structures in any inline racing wheel is the transition layer where a softer structure meets a much more rigid mounting base. This area is a very critical energy management zone for a wheel.
At this pivotal hinge point, the power from the push and the “stored rotational energy” within the deflected tire must not be lost. If the transition or mounting layer between the PU tire and firmer plastic hub is constructed correctly, it enables an optimal balance between tire flexibility and energy release throughout the entire wheel."