Whether you're smashing laps at the bike park, blasting singletrack, or grinding gravel miles, your cranks need to shine in the face of extreme punishment. e*thirteen engineers our cranks to deliver the strength-to-weight ratio you want and the durability to push your boundaries. DH, Enduro, Trail, Downcountry, or Gravel, e*thirteen cranks utilize the highest grade materials and state-of-the-art manufacturing processes. All our Helix direct mount rings work equally well with SRAM and Shimano chains and come in the same wide range of colors that our Helix R cassettes so you can coordinate and personalize your dream build. Focus on your ultimate ride with e*thirteen cranks and chainrings.