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The Shimano Disc Mount Adapter 140mm is a simple but essential component for riders looking to run a 140 mm disc brake rotor with full confidence and proper alignment. Designed to interface cleanly between your frame or fork and the brake caliper, this adapter ensures that the caliper sits in exactly the right position for powerful, consistent braking. It is typically used when you need to match a post mount or flat mount brake setup to a specific rotor size, helping you fine-tune your braking system without replacing major components.
Built with Shimano’s well-known attention to reliability and compatibility, this disc mount adapter is suitable for a wide range of road, gravel, and cross-country MTB setups that use 140 mm rotors. Installation is straightforward for home mechanics and professionals alike, making it a smart upgrade or replacement part when changing rotor sizes or refreshing an older brake system. Whether you are optimizing weight, improving modulation, or simply standardizing rotor sizes across your bikes, the Shimano Disc Mount Adapter 140mm offers a clean, secure, and durable solution.
