All-Terrain Formula (ATF) wheels are poured in a special soft urethane we call All-Terrain Formula or (ATF). ATF wheels are excellent for rougher terrain so regardless of road quality, this revolutionary formula will roll you there quickly and smoothly.

Features:

• Diameter: 56mm
• Durometer: 80a
• Width: 40mm
• Formula : All-Terrain Formula (ATF)
• Wheel Surface: Smooth
• Wheel Shape: Core