This is a high class and durable live axle kit has almost all the rear-end parts you needPerfect for DIY rebuild go kart quad, trikes or drift bikesShaft overall length: 740mm (29 1/8 inch), the thickest part of the shaft is 22mmTubeless wheel spec: 14 3/4″ Tall & 5 1/2″ wide, come with 145/70-6 tire, 6″ rimSpecs:Shaft Overall Length (from end to end): 740mm (29 1/8″)The thickest part of the shaft is 22mm (7/8″)Tubeless Wheels: 14 3/4″ Tall & 5 1/2″ wide, come with 145/70-6 tire, 6″ rimChain and Sprocket: T8FBrake Disc Diameter: 160mm(6 1/4″)Bearing model: 6904RS