e*thirteen Helix Core E-Spec Direct Mount chainring for Bosch SX/CX Gen 4, 34T
Helix Core e*spec direct mount derailleurs have a narrow/wide tooth profile for reliable chain hold and extra long life.
- The derailleurs are designed with an adjustable 13.5-15.5mm offset via a spacer and provide adaptability to 53 and 55mm chainlines for Bosch CX and SX engine systems.
- Cold-hardened and heat-machined converters have excellent durability and toughness at an affordable price.
Converter mounting distance: Direct Mount
Type of direct attachment of the converter: Bosch
Purpose: Bosch SX and CX Gen 4
Material: 4040 steel
Weight: 189 g
Colour | black |
Groupset | Other |
product ID | 267062 |

There are currently no reviews