Promax Hf-2 Hollow Hot Forged 2 Piece Crank Arm Set 24mm X 180mm Black

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The crank arms spin on a beefy 24-millimeter spindle permanently fitted into the drive-side arm. Promax hf-2 hollow hot forged 2 piece crank arm set 24mm x 180mm black hollow-forged from 6061-t6 aluminum, both crank arms are hollow so they are super stiff, yet lightweight.