E*THIRTEENBosch - Helix Race E*spec Chainring Black

Helix R e*spec Chainrings merge cutting-edge design and performance.


Designed as an upgrade for the most popular e-bike motor systems, this 1-piece direct mount chainring is forged and machined from 7075 Aluminium. Boasting lightweight, durability, impressive stiffness, and a standout technical aesthetic.


With a long-wearing tooth profile and refined aesthetic, the integrated look, when paired with Helix Race Alloy e*spec cranks, is the ultimate upgrade to your e-bike.


The new M4 narrow-wide profile delivers enhanced chain retention and cross-compatibility with Shimano®, Sram®, and TRP® 11/12 speed drivetrain, including SRAM® T-Type®.


Bosch ring: 13mm (offset) for 53mm chain line on CX Gen4/SX and 55mm chain line on CX Gen5 bikes.


34 Teeth.


Weight: 107g.


Material Composition


Forged-CNC 7075 Aluminium.