E*thirteen Helix 24mm Cranks CS4HBA-104

- Ultra light, yet rated to endure loads and impacts at 589 grams in 170mm\n- Designed to reduce weight with features into the mold, resulting in a sleek, minimalist aesthetic\n- CNC cuts further optimize weights for a crank that's dependable on any ride\nAL6066-T6 arms are paired with a 24mm heat treated chromoly spindle for larger bearings and dependability\n- Helix Cranks fit with flip-flop Helix R or Helix Chainrings in a range of colors to achieve both Boost and SuperBoost chainlines\n- Chainrings are sold separately