Helix Race 107mm BCD Chainring 42T e*thirteen S3-Cat-UniorTools-TorqueWrenchesVerniers&Accessories slender package that works with

slender package that works with any of the drop bar levers on the market

A sipe (groove) in each of the side knobs allows them to flex and conform to the terrain

1-1/8”-1-1/2”

bring your own or use MS-MJ6536 for a Aero Mount or MS-MJ6538 for Standard Out Front  Mount

Helix Race 107mm BCD Chainring 42T e*thirteen S3-Cat-UniorTools-TorqueWrenchesVerniers&Accessories slender package that works withe*thirteen Helix Race Chain ring 107BCD 42T Shimano SRAM 11 12 speed Chain Compatible Black 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*thirteens 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