Sold as a set of 4 wheels

 Ricta Clouds have a wide variety of sizes and hardness to cover the range of surfaces and styles of skateboarding that exist.  You wouldn't ask a fish to climb a tree, why ask your wheels to do what they don't do best either?

Ricat 54mm 92a is that true skate all terrain wheel that can handle the park, and not vibrate your teeth out in the streets wheel your set up is asking for.