e*thirteen Helix Race Alloy Cranks - Bronze carted M = 54-58 cm

M = 54-58 cm

EXT combines Vittoria's peerless knowledge of racing performance with the durability of a long-lasting nylon casing that uses a unique Silica and Graphene compound for improved rolling efficiency

offering improved comfort and efficiency

Silk bar tape

Ultra-long Battery Life

e*thirteen Helix Race Alloy Cranks - Bronze carted M = 54-58 cme*thirteen has love for aluminum. Knowing lightweight, confidence inspiring strength, and stunning looks are top priorities for our pros and customers alike, we went after all three with a vengeance. The Helix Race is our top of the line aluminum crankset, with XC weight and EWS worthy Enduro strength. Forged AL6066 T6 crank arms were engineered to maximize stiffness and strength while minimizing excess material. Massive amounts of CNC optimization