e*thirteen Helix e*spec Bosch CX Gen 4 Chromoly Steel Chainring

The Helix e-bike chainring from e*thirteen with direct mounting for Bosch SX and CX Generation 4 mid-drive motors

• Boost chainline 53/55mm
• Material: Hardened chromoly steel
• Direct Mount for Bosch SX and CX Gen 4 systems
• Revised M3 narrow-wide tooth profile for noise reduction and durability
• Compatible with 10/11/12-speed drivetrains from Shimano and SRAM
• High durability
• Colour: black

Upgrade your e-bike drivetrain with Bosch e*spec Direct Mount chainrings. The M3 narrow-wide tooth profile reduces weight without compromising chain retention.

The Helix Core e*spec Direct Mount chainrings feature a narrow-wide tooth profile for reliable chain retention and an exceptionally long service life. Designed with an adjustable 13.5–15.5 mm offset via spacers, they offer compatibility with 53 mm and 55 mm chainlines for Bosch CX and SX motor systems. Helix Core e*spec chainrings are cold-formed from steel and then heat-treated to ensure excellent durability and toughness – all at a price that’s easy on your wallet.

Herstellerinformation: e*thirteen, Klosterstrasse 6, 83278 Traunstein, Germany, https://www.ethirteen.com