Duro: 83b Inner, 55d Outer
This is a 4 Pack of 54mm 83B Street/Park/Pool Wheels with Powerflex custom Gumball Core. The hard outer riding surface has a perfect formula for speed. It slides well but doesn’t come out from under you, and grips when you need it. The 55D Gumball core smooths out the ride like no other wheel can because no other wheel is made with this combination.