e*thirteen Helix Core e*spec Chainring GiantMaySale perfect for keeping dry and

perfect for keeping dry and clean on any surface or weather

High tensile strength carbon fiber is placed at only the most crucial points to provide optimal stiffness and class-leading weight

Dimensions: 61

Whether you’re clocking up daily kilometres

endurance riding and fast training

e*thirteen Helix Core e*spec Chainring GiantMaySale perfect for keeping dry andHelix Core e*spec Direct Mount Chainrings feature our narrow wide tooth profile, for reliable chain retention and an extra long wear life. Helix Core e*spec rings are cold formed from steel and then heat treated to provide excellent durability and toughness, all at a price that's easy on your wallet. Features Long lasting and economical steel construction. M4 narrow wide tooth profile for excellent chain retention and Shimano SRAM drivetrain