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The Shimano Freehub 12s 148/28 Thru Boost is designed for modern mountain bikes that demand precise, reliable drivetrain performance. Built around the Boost standard with a 148 mm rear spacing and thru-axle compatibility, this freehub body is made to work with 12-speed Shimano-style cassettes, offering crisp engagement and smooth power transfer on demanding trails. It’s an ideal replacement part if you’re refreshing a worn hub, upgrading an existing wheel, or converting a compatible hub to a 12-speed setup.
Engineered with Shimano’s proven durability, this freehub is made to withstand hard riding, frequent shifting, and rough conditions. The design focuses on consistent engagement and long-lasting bearing performance, helping your rear wheel spin freely and your cassette lock firmly in place. Whether you ride technical singletrack, all-mountain terrain, or enjoy long days in the bike park, the Shimano Freehub 12s 148/28 Thru Boost provides a dependable foundation for your drivetrain, ensuring you can focus on the ride instead of worrying about your hub.
