E13 e*spec Steel Direct Mount Chainring 34T Bosch CX Gen4 CL 53/55 via Spacer Black

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 for excellent chain retention and Shimano®/Sram® drivetrain compatibility
Compatible with Sram® T-type® chains Read less