This head stem steering rod bearing is designed for use with 50cc, 70cc, 110cc, and 125cc pit bikes compatible with SDG, SSR, and BBR models.The bearing fits the steering head assembly and supports smooth handlebar rotation and front-end control.It is engineered to replace worn or damaged steering components and helps maintain proper alignment of the front fork system.This part is suitable for off-road motorcycles requiring a steering rod bearing upgrade or replacement.Compatibility Note: This is a third-party replacement component.Brand and model references are included solely to indicate fitment.