This is a high class and durable live axle kit for rebuild go kart Quad or Trikes The Axle fits 6 inch wheels (rim) with 3 bolt pattern and 3 inch bolt to bolt space Package includes (just as main image): (1) Axle Assembly, (4) Wheels (with tire, rim, tube), (1) T8F Chain, (1) Brake Master Cylinder Caliper Assembly, (1) Sprocket, (1) Brake Disc, (2) Pillow Block, (2) Front Wheel Hubs, (1)Left & Right Steering Knuckle(1) Steering Wheel (1) Gear rack and pinion Specs: Shaft Overall Length (from end to end): 740mm (29 1/8") The thickest part of the shaft is 22mm (7/8") Wheels: 12 9/16" Tall & 4 1/2" wide come with 4.1-6 tire, 6" rim, and inner tube Chain and Sprocket: T8F Brake Disc Diameter: 160mm(6 1/4") Bearing model: 6904RS If needed just contact seller for more detailed dimension and spec.