Helix Core e*spec | Chainring | 34T | Bosch SX / Gen4 CX Direct Mount | 53/55mm Chainline | 15.5mm / 13.5mm Offset | Black
Helix Core e*spec Direct Mount Chainrings feature our M3 narrow-wide tooth profile, for reliable chain retention and extra long wear life. Designed with an adjustable 13.5-15.5mm offset via spacer, they provide adaptability to both 53 and 55mm chainlines for Bosch CX motor systems. Helix Core e*spec rings are cold-formed from steel then heat-treated to provide excellent durability and toughness, all at a price that’s easy on your wallet.
Long-lasting and economical steel chainring for Bosch CX Gen 4 motors
Narrow-Wide chain retention tooth profile
Adjustable chainline for 53 and 55mm CL bikes
Compatible with Shimano and most SRAM 11 and 12-speed chains