Bigfoot Freeride Longboard Wheels Stoneground Pathfinders Measures 70mm x 45mm with a 80A SHR hardness The 80A Super High Rebound (SHR) hardness provides a good amount of slide-ability while retaining grip and roll characteristics The center set core allows the rider to flip and rotate wheels for longevity The Pathfinder is designed to break free and provide icy smooth slides with little-to-no break in period The pathfinders rounded edges and stone ground finish make a wheel that provides predictable slides right out of the box 70mm wheels provide quick acceleration with good roll speed making it easy to get up to speed and maintain roll