Fine-tune bicycle geometry in a garage, repair workshop, or outdoor work area to make cycling more comfortable and stable. Key benefits - Precise saddle alignment with a pressure polymer leveling tool, integrated bubble vial, and smartphone apps for angle measurement. - High accuracy enabled by advanced pressure technology, with adjustable calibration features and seamless compatibility with mobile angle-measurement apps. - Innovative horizontal calibration systems that deliver millimeter-level precision for road bikes, mountain bikes, and indoor bike setups. - Versatile compatibility across bike types and environments, enabling consistent results whether you are repairing, tuning, or customizing. What makes it strong - Function: enabling exact saddle height, tilt, and overall seating geometry to improve comfort and stability on every ride. - Compatibility: designed to work with mobile angle-measurement applications, and suitable for road, mountain, and indoor trainer configurations. - Performance: advanced pressure-based measurement paired with precise horizontal calibration for repeatable results. - Design features: built-in bubble vial for quick reference and alignment checks during use. Use scenarios - Home garage setup: use before a training session to ensure a comfortable, stable riding position and reduce fatigue on long rides. - Repair shop adjustment: during frame or component work, verify saddle alignment and seating geometry to maintain ride quality after tuning or part replacement. - Indoor trainer configuration: set up indoor bike rigs with millimeter accuracy to ensure consistent geometry and reliable data during performance sessions.