Professional frame transmission hanger calibrator Key benefits Measures and straightens misaligned frame transmission hangers to restore precise shifting and reduce misshifts. Helps resolve shifting issues after hanger correction by enabling proper adjustment of the lifting lug, especially for rear position shifting problems. A reliable tool for bike enthusiasts and professionals to maintain smooth, consistent gear performance. What it does Provides accurate alignment of transmission hangers to improve shifting accuracy. Used to adjust the lifting lug after correction to prevent shifting drift and ensure longterm reliability. Particularly effective for rear derailleur shifting alignment on commonly used bicycle frames. Construction and materials Stainless steel body for durability and corrosion resistance. Surface finished with electroplating heat treatment. CNC thread milling for precise, repeatable threading and strong performance. strength, wear and impact resistance for frequent use in workshops or home maintenance. How it works Press the sliding bracket to adjust the distance between the measuring rod and the hub. Use the calibrated setup to measure the deviation of the hanger and perform alignment corrections as needed. Practical use scenarios After a crash or impact, use the calibrator to realign a bent frame hanger before riding to ensure reliable shifting. During routine maintenance, verify and correct hanger alignment to maintain precise shifting on road or mountain bikes. In a bike setting, quickly diagnose and correct hanging misalignment across multiple bikes to reduce derailleur shifting issues and customers to riding sooner. Compatibility and size Designed for standard frame hanger alignment tasks on common bicycle frames and hubs. Size details are not specified in the available data; intended for general hanger alignment work. Performance and care Delivers strength and resistance for long service life under regular workshop use. After use, wipe clean and store in a dry place to preserve the surface finish and accuracy.