Narrow - Narrow wheels have the least amount of traction and are intended for advanced, tech riding.
Treaded - Treaded wheels provide improved grip and traction on smooth surfaces.
NRG Urethane - According to Ricta, NRG formula is the fastest urethane in skateboarding, it's been proven in the laboratory and backed up with testimonials from professional skaters Brandon Westgate, Caswell Berry, Cairo Foster, Tom Asta and Nyjah Huston.
99a - Best used in pools and parks with a little more grip than harder wheels, and a little more slide than softer wheels. Ideal for moderately skilled riders who also want to skate street when needed. Hard enough that sliding is a breeze while soft enough for a smooth roll and plenty of grip.
Most urethane skate wheels generally range from 75a-101a, the numbers increase with the hardness of the wheel.
|Riding Surface (mm):||15.24||15.47||15.5|
|Suggested Riser Size (in):||N/A||N/A||N/A|