G13 Inline Skate Wheels 8-pack

Advanced wheels designed for speed skating. These wheels are constructed around the four-component TR3 system referred to as "Core improvement" alongside G13 Polyurethane. The team at Matter laboratories, in collaboration with the Powerslide Matter racing team, is extremely confident that these wheels will lead both track and road racing for years to come.
The G13 PU provides excellent grip without sacrificing roll, and it offers impressive pop out of the turns.
These new 2015 wheels also incorporate S.E.R.T. technology, which stands for Stored Energy Ring Technology. This is best elucidated by the engineer behind the wheel - Neal Piper:

"One of the most significant structures within any inline racing wheel is the transition layer where a softer structure connects with a much harder mounting base. This is a critical energy management zone for a wheel.
At this essential hinge or pivot point, the power from the push and the “stored rotational energy” within the deflected tyre must not be lost. When a transition or mounting layer between the PU tyre and the harder plastic hub is constructed correctly, it achieves the perfect equilibrium between tyre flexibility and energy release across the entire wheel."