Ricta - 56mm 92a Black Chrome Clouds Skateboard Wheels (4 Pack)Ricta Chrome Clouds 56mm, 92a, white with chrome black core. 92a is the hardest of our soft formulas for versatility on a variety of surfaces and obstacles. Chrome Clouds integrate our high performance soft urethanes with Ricta's latest core design to provide a modern shaped soft wheel for your everyday set up or cruiser. Like regular Clouds, they are available in 78, 86, or 92a in 54 and 56mm sizes. Details Family Chrome Clouds Road Surface 21. 8