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
Chainline
Bosch®: 53/55mm options with included spacer
TQ®: 55mm
Shimano®: 55mm
TQ®: 55mm
Shimano®: 55mm
Color
Black
Compatibility
Bosch® SX / Gen4 CX, TQ® HPR50, Shimano EP8®
Material
4040 Steel
Size
Bosch®: 34T, 36T
TQ®: 32T
Shimano®: 32T
TQ®: 32T
Shimano®: 32T
Weight
Bosch®: 189g
TQ®: 94g
Shimano®: 113g
TQ®: 94g
Shimano®: 113g