Surface
Smooth - Smooth wheels come with a shiny coating on the riding surface that feels grippy at first, but wears away quickly.
Wheel Profile
Narrow - The least amount of traction intended for advanced, technical skateboarding.
Formula
X Formula (XF) - XF-97A X-Formulas roll over rough terrain like softer wheels do, but slide much like a harder wheel will.
Wheel Shape
V1 Shape - Versatile, stable and durable. Best all-around performance for classic street skating.
Lip Radius: 0.25"
Bearing Placement: Center-Set/Reversible
Durometer
99a - Offers more grip than harder wheels and more slide than softer wheels. Great for slick surfaces when you want more control.
Details
Made in the USA - Poured in Santa Barbara, California.