The durable e*thirteen Helix R chainring is CNC machined from high quality aluminum and available in different colors. The Narrow-Wide Design of the 4th generation prevents the chain from jumping off and reduces the noise while pedaling. Thanks to the 3-bolt design Direct Mount type, it is quickly and easily installed on compatible cranks with the same interface.
Technical details of the e*thirteen Helix R chainring
- material: aluminum (AL-7075-T6, CNC machined)
- SRAM 3-bolt interface
- Offset: 3 mm
- Direct Mount
- compatible with 11/12-speed
- compatible with 11/12 speed chains from SRAM and Shimano
- Narrow-Wide-Design
Weight (manufacturer’s specification):
- 28 teeth: approx. 48g
- 30 teeth: approx. 50g
- 32 teeth: approx. 52g
- 34 teeth: approx. 54g









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