Helix Core e*spec Steel E-MTB Chainring

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Helix 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 f rom steel and then heat-treated to provide excellent durability and toughness, all at a price that's easy on your wallet. Long-lasting and economical steel construction M4 narrow-wide tooth profile (our latest M5 profile on Avinox® rings) for excellent chain retention and Shimano®/Sram® drivetrain compatibility Compatible with Sram® T-type® chains Show more