69mm Concave wheels have an innovative concave lip profile that creates incredible grip. As the concave edges compress, they dig in and increase the surface area in contact with the ground, so you can put more energy into your turns without sliding out. Available in 78a
Roundhouse Concave Wheels give you extra projection out of your turns so you can complete maneuvers you’d otherwise slide out on. The key to this design is the concave riding surface which, when under weight, produces an hourglass-shaped contact patch. This increases the surface area and pushes the lip into the ground, creating more grip than ever before while maintaining
consistent roll speed. These are the grippiest wheels you’ll ever ride!
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