Tune up your board with this truck and wheel package. Inclues Thunder trucks, Spitfire wheels, hybrid ceramic bearings, and 1" hardware. Thunder Team Hollows. Team designed for extra height & wheel clearance, original 1mm taller team baseplates with premium grade hollow kingpins, extra strong reinforced hollow axles, lightning quick turn response. Hollow Kingpin. Hollow Axle. Red Bushings. Thunder 147 = 8.0" Axle. Includes 2 Trucks.Spitfire is one of the largest companies in the skateboard wheel business. Spitfire uses top quality U.S. made urethane which in turn makes the best and smoothest skateboard wheel out. Many Pro skateboarders ride on Spitfire wheels. Not only are the wheels top quality but the graphics are awesome. Spitfire wheels are hard to get your hands on and always sell out quickly. Get yours today and notice the difference.. Also includes Amphetamine Hybrid Ceramic Bearings and 1" Mountin Hardware.