E*thirteen QuickConnect Direct Mount rings include 1mm spacers, which allows them to be run on legacy cranks (TRS/LG1/XCX), as well as Helix and Helix R cranks
3-bolt direct mount chainrings fit SRAM and other similar interface cranks
Tooth profile is compatible with both Shimano and SRAM chains in both 11 and 12 speed
Can be flipped to provide either a 52 or 55mm chainline
