KOYO crankshaft bearings are manufactured to precise OEM specifications from the highest quality materials. They are designed to fit perfectly with OEM and aftermarket crankshafts. The KOYO Crankshaft Main Bearing KTM (30x62x20) ensures optimal performance and durability for your KTM engine. These premium bearings provide exceptional reliability under demanding conditions, making them an ideal choice for both professional and recreational riders. With advanced engineering and rigorous quality control, KOYO bearings enhance engine efficiency and longevity, ensuring a smooth and dependable ride.