Wiseco’s bottom-end rebuild kits help save time and money for your dirt bike, ATV, or UTV bottom-end rebuild. Available for many popular applications, these kits contain a crankshaft assembly, main bearings, and a bottom-end gasket kit, all in one box under one part number. Each kit contains everything you need to complete your rebuild the right way, the first time - crankshaft and connecting rod, all applicable bearings, and complete bottom end gasket kit made to meet or exceed O.E.M. quality. Wiseco connecting rods are double forged from a dedicated forging and feature shot peening, oil slots, and coated bronze thrust washers.