OJ Black Sabbath Vol 4 Keyframe 78a Skateboard Wheels Black 56mm 56mm

The OJ Wheels Black Sabbath Vol. 4 Black 56mm; 78a Key Frame Wheels feature Black Sabbath Vol. 4 artwork on our black 78a urethane with a yellow core. © 2026 BS Productions Limited. Under License to Bravado Merchandising. All Rights Reserved. Juice Specs OJ’s 78a soft urethane formula makes Keyframe wheels the perfect choice for a cruiser / filmer board or set them up on your regular skateboard when you’re hitting a rugged spot. OJ Wheels: Roll with the Juice. Brand OJ Wheel Diameter (Millimeters) 56 Wheel Durometer/Hardness 78a Road Surface (Millimeters) 21.85 Wheel Width (Millimeters) 34.86