KOYO Crankshaft Main Bearings are manufactured to precise OEM standards using the highest quality materials. These bearings ensure a perfect fit for both OEM and aftermarket crankshafts, providing enhanced durability and performance. The dimensions of these bearings are 35x72x17mm, making them an ideal choice for maintaining the integrity and efficiency of your engine's crankshaft assembly. Designed to meet the rigorous demands of high-performance engines, KOYO Crankshaft Main Bearings are a reliable solution for KTM, HQV, and GASGAS bikes. Whether you are upgrading or performing routine maintenance, these bearings are engineered to withstand harsh conditions, extend engine life, and ensure smooth operation.