E-Thirteen Black E Spec Steel Direct Mount Chainring Cl 53/55 189G
E-Thirteen
Helix Core e*spec Direct Mount Chainrings feature our narrow-wide tooth profile, for reliable chain retention and an 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 and SX 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.Chainline: 53/55mm, 15.5mm / 13.5mm OffsetCompatibility: Bosch SX / Gen4 CX Direct MountMount: 4040 SteelSize: 34T, 36TWeight: 189g
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