Designed to meet the famous "Millville" mixed terrain. The unique dual rotation tread pattern allows for a wide range of applications from "Millville's Gravity Cavity" loam to lose soil over hard base. Reinforced knob base for excellent durability. New factory style racing tread compound for high grip on soft surface with a hard base. New lightweight casing ply material for reduced unsprung weight. This product is not affiliated with or endorsed by Spring Creek MX Park in Millville- MN. Available in STICKY and standard race compounds.