Measurement: Length: 740mmDisc: 160mm*4mmSprocket: T8F 58T ( We also have #35 sprocket fit this axle, If you need #35 sprocket pls contatc us)Bearing model: 6904RSThis is a complete rear axle kits for gokartPerfect for DIY gokart projects or rebuildsFit many 50cc 70cc 90cc atv quads, go karts such as atomik , motowork, DHZ , LEI etcPackage includes: 3 stud hubs, disc and sprocket carriers, bearings and seals in axle bearing housing, 29inch axle