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We offer Free UK Mainland Delivery on all orders over £20. Products shipped to outlying UK regions are excluded from free shipping.
Standard delivery is normally 2 - 5 working days.
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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.
Occasionally, without notice, manufacturers change product design and/or specifications.
- Chainline: 53/55mm, 15.5mm / 13.5mm Offset
- Compatibility: Bosch SX / Gen4 CX Direct Mount
- Mount: 4040 Steel
- Size: 34T, 36T
- Weight: 189g
Occasionally, without notice, manufacturers change product design and/or specifications.
