FSA Comet Mountain Bike Crankset with MegaExo Bottom Bracket. Whether you're replacing a thrashed crankset or building a new mountain bike from the ground up, the FSA Comet MegaExo crankset is a solid choice for anchoring your drivetrain. The forged alloy crankarms are stout and flex-free, the 7075 chainrings are strong and lightweight and the MegaExo bottom bracket delivers smooth performance.
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