OJ Thunder Juice are an XL version of our popular Hot Juice series. Big, soft, and fast-the 78a formula makes the roughest roads seem perfectly smooth. Excellent for fast transportation with minimal pushing. They are soft and grippy so these wheels aren’t meant for power slides. Great for dirt boards, longboards, and cruisers. Features: Width : 54mm Road surface : 54mm Durometer: 78a Diameter: 75.5mm