The Shimano Inner Plate SGS-Type is a genuine replacement component designed specifically for Shimano rear derailleurs that use an SGS (long cage) design. As part of the derailleur cage assembly, the inner plate plays a crucial role in guiding the chain smoothly across the cassette, helping to maintain crisp, reliable shifting under load. Using an original Shimano plate ensures precise fitment, consistent performance, and compatibility with the intended derailleur models, avoiding the problems that can arise from non-matching or improvised parts.
This inner plate is ideal for riders who want to restore the performance of a worn or damaged rear derailleur cage without replacing the entire derailleur. Whether you ride mountain, trekking, or hybrid bikes equipped with a long-cage Shimano rear derailleur, a fresh inner plate can help improve chain retention, reduce noise, and extend the life of your drivetrain. It is well suited for home mechanics and professional workshops alike, offering a cost-effective way to keep Shimano shifting systems running smoothly and reliably over many more kilometers of riding.