ProX Bottom End Bearings & Seals are designed for precision fitment, durability, and superior engine performance, making them essential for engine rebuilds in motocross, off-road motorcycles, dirt bikes, and ATVs. Manufactured from high-quality bearing steel and premium sealing materials, these components offer exceptional wear resistance, optimal lubrication, and long-lasting reliability. Each kit is engineered to meet or exceed OEM specifications, ensuring precise tolerances, reduced friction, and improved sealing to prevent leaks and contamination.