Koyo Crankshaft Main Bearings are meticulously manufactured following exact OEM standards using the highest quality materials. These bearings offer perfect compatibility with both OEM and aftermarket crankshafts, ensuring optimal performance and longevity. Designed for reliability, Koyo bearings stand out in the market due to their precision and durability, providing a seamless fit and superior functionality. Trust in Koyo to deliver excellence and reliability for your SUZUKI, YAMAHA, and TM motorcycles. (6305/C3)