e*thirteen Helix Race Alloy Cranks - Sterling Silver Size:165mm Pre-tension Bolt for Shimano Hollowtech

Pre-tension Bolt for Shimano Hollowtech II Cranks and Shimano E-bike motors

keep the bag sitting securely and free of movement while riding

As the bicycle rolls along

Provides smooth horizontal and rotational adjustments

e*thirteen Helix Race Alloy Cranks - Sterling Silver Size:165mm Pre-tension Bolt for Shimano Hollowteche*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