Features: 1.Applicable Model: The wheel hubs steering spindle can be installed on left and right of front wheels, and fits for quad bike ATV go kart with 6in tires. 2.Safe Steering: The steering knuckle transmits and bears the load at the front of the car, making the car turn stably and easier to deal with bad road conditions. 3.Durable Structure: Forged with high hardness steel alloy and heat treated to provide better finish and ensure high bearing hardness, wear resistance and high strength. 4.Direct Replacement: 3 stud wheel hubs steering spindle is used to replace or repair the original damaged steering strut knuckle system, to provide your car with better driving performance. 5.Easy to Install: Wheel hubs steering spindle is stringently manufactured to meet the original standard, perfect replacement for the old or broken one, easy installation. Specification: Item Type: Wheel Hub Bearing Flange Material: Steel Alloy Quantity: One pair (for left and right front wheels) Distance Between Hub Mounting Holes (Center to Center): Approx. 78mm / 3.07in Applicable Model: For 6in Tires quad bike ATV go kart