This is a high class and durable live axle kit for rebuild go kart Quad or Trikes29in. Axle Kit:Specs:29in. Axle Kit come with: Axle + T8F chain sprocket + Brake Disc + 7/8″ Pillow block bearings + 3 bolt pattern wheel hubAxle length (from end to end): 740mm (29 1/8″)The thickest part of the shaft is 22mm (7/8″)Chain Sprocket: T8F 58 Tooth or 35# 58 toothBrake Disc Diameter: 160mm(6 1/4″)Bearing model: 6904RSThe Axle fits 6 inch wheels (rim) with 3 bolt pattern and 3 inch bolt to bolt spaceWorks for 2 stroke engine or electric motors32in. Axle Kit:Specs:32in. Axle Kit come with: Axle + 428 chain sprocket + Brake Disc + 1″ Pillow block bearings + 4 bolt pattern wheel hubAxle length 32 inch (810mm), 1″ in diameter and the thickest part of the axle is 1 3/16″ (30mm)Chain Sprocket: 428 41Tooth or 420 37 toothBrake Disc Diameter: 190mm(7 1/2″)The Axle fits 6 inch-10 inch wheels (rim) with 3 inch bolt to bolt spaceWorks for 4 stroke engines