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The Shimano Clamp Band Adapter M is a practical mounting solution designed to let you use a braze-on style front derailleur on frames that require a clamp-on interface. Many modern road and gravel frames feature braze-on mounts, but if your frame has a round seat tube without this mount, a clamp band adapter is the cleanest way to install a compatible front derailleur. Shimano’s adapter is engineered for a secure, precise fit around the seat tube, helping to maintain accurate shifting performance and reliable chain guidance under load.
Built to Shimano’s well-known quality standards, the Clamp Band Adapter M offers durable construction and a tidy appearance that blends seamlessly with most drivetrains. It is typically sized for common seat tube diameters and uses a straightforward clamping mechanism, making installation and adjustment simple for home mechanics and professionals alike. Whether you are upgrading an older frame, replacing worn hardware, or adapting a new derailleur to your existing bike, this adapter provides a cost-effective way to expand your component options without changing your frame.
