New Pro Collabs by Ricta Wheels! The 101a durometer Ricta Naturals feature a classic street style slim-shape for superior quality and control. Tommy Sandoval's 53mm pro Zero x Ricta wheel is engineered to perform equally well in the park or the streets. Rock the graphics on the outside or flip the wheel for a clean, non-graphic look. Naturals are proven by top pros to be the fastest non-core skateboard wheel!