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Redline Flight AL Cranks
The Redline Flight AL race cranks have a 2.5-pc design featuring hollow forged 6066 aluminum arms with large cross-section to maximize strength and rigidity, steel pedal inserts, a 24mm hollow chromoly spindle that's pressed into the right side arm, and a 4x104mm spider gear that's forged from 7050 aluminum to further increase stiffness. The included External Euro BB features 6061 aluminum cups with oversized cartridge bearings for smoother operation and extended bearing life when compared to a conventional Euro BB.