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The Fiend Midsize BB is a reliable mid-sized bottom bracket designed specifically for BMX frames that use a mid bottom bracket shell. Built to handle the demands of street, park, and dirt riding, it provides a smooth, consistent spin for your cranks while standing up to heavy landings and repeated impacts. The mid BB format is a popular standard in modern BMX, offering a clean look, easy installation, and solid durability without unnecessary weight or complexity.
This bottom bracket typically includes high-quality sealed bearings and the hardware needed to fit most 19mm or 22mm BMX crank spindles, depending on the version. Sealed bearings help keep dirt and moisture out, reducing maintenance and extending service life, which is especially important for riders who ride hard in all conditions. Whether you are building a new custom BMX or refreshing a well-ridden setup, the Fiend Midsize BB is a practical upgrade that helps keep your drivetrain running quietly, efficiently, and ready for every session.
