e*thirteen Helix Race Alloy Cranks - Sterling Silver Bikebox the Ultegra cassette strikes the

the Ultegra cassette strikes the ideal balance between weight

especially suited to aggressively forward aero riding positions

This crankset is optimized for use with SRAM Road DUB (Non-Wide) bottom brackets

Designed for use with a 104 BCD interface of any 104 BCD spider

Shift Lever: Trigger / Clamp (closed)

e*thirteen Helix Race Alloy Cranks - Sterling Silver Bikebox the Ultegra cassette strikes thee*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