Lighter, stronger and more value than the competition. Helix Cranks proven forged AL-6066 alloy for trail weights and Enduro strength and durability. Engineered with weight reduction features into the mold, resulting in a sleek, minimalist aesthetic. CNC cuts further optimize weights for a crank that's equally at home on long singletrack days and for bikepark shuttles. The AL6066-T6 arms are paired with a 24mm heat treated chromoly spindle, resulting in a crankset that hits way over its price point. Exemplifying cross compatibility, Helix Core Cranks fit with flip-flop Helix Race or Helix Chainrings in a range of colors from 28 to to 34t and can achieve both Boost and SuperBoost chainlines, and perform equally well with both SRAM(TM) and Shimano(TM) 11 and 12-speed drivetrain systems. Equipped with a self-extractor bolt system, and creak-free proven Quick Connect interface, you get all the benefits of higher-end cranks without a heavy price tag. - Available in 165mm, 170mm and 175mm crank lengths with 73mm spindle length - Ultra light, yet rated to enduro loads and impacts at 589 grams in 170mm - Designed to reduce weight with features into the mold, resulting in a sleek, minimalist aesthetic - CNC cuts further optimize weights for a crank that's dependable on any ride - AL6066-T6 arms are paired with a 24mm heat treated chromoly spindle for larger bearings and dependability - Unmatched cross compatibility, Helix rings perform equally well with both SRAM(TM) and Shimano(TM) 11 and 12-speed drivetrain systems - Helix Cranks fit with flip-flop Helix Race or Helix Chainrings in a range of colors from 28 to to 34t to achieve both Boost and SuperBoost chainlines Chainrings are sold separately. Compatibility All frames with a 68/73mm BB shell Included Crankset, BB/lockring tool, lockring, APS adjuster, User Manual, and sticker