e*thirteen Helix R 107 BCD 4-Bolt Chainring - 42t 11/12-Speed 107BCD Black Rails-Steel Redesigned front and rear dropouts

Redesigned front and rear dropouts to accommodate captured 12mm thru-axles and flat-mount disc brakes

Bike Mountable Yes

Includes left and right taps

1 brake fluid is perfectly designed to suit the needs of Avid hydraulic brake system

Increased clearance designed specifically for use with TRP industry leading 2

e*thirteen Helix R 107 BCD 4-Bolt Chainring - 42t 11/12-Speed 107BCD Black Rails-Steel Redesigned front and rear dropoutsThe e*thirteen Helix Race 107 BCD Chainring designed for 4 bolt 107 BCD cranks like SRAM Red or Force including power meter equipped cranks offers a performance upgrade for Gravel and Road cyclists. The 38 40 and 42 tooth rings pair perfectly with e*thirteens cassettes for more overall range and higher top speeds. Made from durable premium 7075 alloy they're CNC sculpted for a high stiffness to weight ratio. Compatible with both SRAM and Shimano 11