e*thirteen Helix Race Alloy Cranks - Sterling Silver Bikebox a revised shape

a revised shape

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

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

Shift Lever: Trigger / Clamp (closed)

trekking bike tires with ease

e*thirteen Helix Race Alloy Cranks - Sterling Silver Bikebox a revised shapee*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