This chainring is specially designed for e-MTBs equipped with a Bosch Performance CX Gen4 motor. It offers optimal chain retention on the chainring, so you can forget about derailments on the trails!
Mathieu D.
Mountain bike expert
The E-Thirteen Helix Race e*spec chainringis designed for fitting on electric mountain bikes equipped with a Bosch CX Gen4 motor. This chainring incorporates Narrow Wide technology, which provides better chain retention on the chainring, helping to prevent derailments on rough trails.
- Compatibility: Bosch Gen4 motors as well as Shimano™, SRAM™ and TRP 11/12-speed drivetrains
- Tooth count: 34T
- Chainline: 55 mm
- Narrow-wide technology for improved chain retention on the chainring
- Material: CNC-machined 7075 aluminium
- Weight: 100 grams
- Colour: black
- Part number: CR5HRA-101
- Brand: E-Thirteen
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