Yamaha XSR125 2021 125 XSR125. Yamaha XSR125 2025 125 XSR125. Yamaha XSR125 2022 125 XSR125. Yamaha XSR125 2023 125 XSR125. Yamaha XSR125 2024 125 XSR125. The Camshaft Bearing 6001 is a precision 6001-series single-row deep groove ball bearing that supports the camshaft within the engine, allowing it to rotate smoothly under valve spring loads and camshaft drive forces.