High performance 4.10-6 rear tires with rims included Centrol hole: 2.12''(54mm), Bolt diameter: 8mm, Mounting hole eye to eye: 3.07''(78mm) Suitable for go karts, scooters, atv, quad, etc. Puncture resistant, used in soft, intermediate and hard packed terrains Wheel Size: Height 12.6" (320mm) x Width 4.52" (115mm)