E*Thirteen Helix Core eSpec Steel Chainring Avinox 34T

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 from 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 Product Specs Chainline - Avinox: 55mm (8mm offset) Colour - Black Compatibility - Avinox M1/M2/M2S Material - Steel (4040) Teeth - Avinox: 34T Weight - Avinox: 203g