Length: 740mm / Disc: 160mm*4mm / Chain Sprocket: T8F 54TWheel Size: Height 12.6″ (320mm) x Width 4.52″ (115mm)Centrol hole: 2.12″(54mm) / Bolt diameter: 8mm / Mounting hole eye to eye: 3.07″(78mm)Fit many 50cc 70cc 90cc atv quads buggyRear Axle Kit:Length: 740mmDisc: 160mm*4mmSprocket: T8F 54TBearing model: 6904RSThis is a complete rear axle kits for go kart The kit includes: 3 stud hubs, disc and sprocket carriers, bearings and seals in axle bearing housingBrake Assembly:Brake hose length: 61 inch (1550mm)Rear brake assembly with master cylinder and caliperPackage include: 2 x 13×5.00-6 Tires wheels + Rear Axle Kit + 2 x pillow blocks + T8F Chain + 1x complete engine motor + 1x fuel tank + 1x kill switch + 1x throttle grip and cable