E-THIRTEEN Helix Race E-Spec Bosch Gen4 chainring

E*thirteen spared no expense in creating the Helix R e*spec chainring.

Designed for Bosch Gen 4 e-bikes, this 1-piece direct mount chainringIt is forged from 7075 AL for strength, strength, and longest life.

CNC machining and an M3 tooth profile provide an ultralight chainring that offers the best Shimano/SRAM compatible chain retention and striking technical aesthetics.

A custom exterior dust cover enhances the built-in look and helps prevent contamination.

The Helix R is fully compatible with Shimano, SRAM, and TRP 11- and 12-speed drivetrains, with e*thirteen cranks, cassettes, stems, tubeless valves, and more.

Available with 53mm of chainline in 32T and 34T sizes, it allows you to drop down one chainring size to take full advantage of e*thirteen´s patented smaller 9T sprocket.

- 7075 AL CNC-Forged Upgrade Chainring for Bosch Gen 4e-bikes- Cross compatibility with Shimano, Sram and TRP 11/12s transmissions- Lightweight, sti, long life, with technical aestheticsand improved chain retention.

Sizes 32/34T.

-Chainline (55mm CL available soon).

-Custom integrated dust cover.

-Weights 32t-99g/34t-107g (without rubber boot).