e*thirteen components Helix Race 107BCD Chainring

e*thirteen Helix Race 107BCD Chainring

The Helix Race 107 BCD Chainring is a high-value quality upgrade for Gravel and Road Cyclists using 4-bolt 107 BCD cranks such as SRAM® XPLR or Power Meter Cranks like Quarq Force or Rival. Take full advantage of e*thirteen’s widest range cassettes by dropping 2 teeth or more in chainring size with our smaller 38, 40, and 42T sizes. A combo that supports steeper climbs and faster descents.

Helix Race 107 BCD rings are forged from long-wearing 7075 alloy and CNC optimized for stiffness, lightweight, and chain-retaining performance. Black & grey color options to coordinate with e*thirteen 9-45T and 9-50T cassettes. Like all e*thirteen chainrings, they feature cross-compatible tooth profiles, switching seamlessly between SRAM® or Shimano® 11 and 12-speed drivetrains for absolute build freedom. Chainline is determined by SRAM® crank assembly, 45mm for normal width cranks, 47.5mm for wide cranks.

Details

• Item #ETR1WWG

Tech Specs

Material

AL-7075-T6 aluminum alloy

Number of Rings

1

Teeth

38, 40, 42t

Bolt Circle Diameter

107mm

Connection

4-bolt

Compatible Components

4-bolt 107 BCD SRAM cranks and Quarq power meter cranks

Includes

1 chainring

Claimed Weight

[38t] 2.33oz (66g), [40t] 2.61oz (74g), [42t] 2.82oz (80g)

Activity

cross-country, trail, enduro

Manufacturer Warranty

5 years