Mike Nelsonwrote a review of Absolute Black SRAM CX Oval Direct Mount Chainring on September 20, 2016
Familiarity: I've used it several times
After being interested in oval chainrings for a long time, I decided to try this one on a cross/multisurface road build. I paired a 38-tooth oval ring with a Force 1 crankarm and an xx1 10-42 cassette. After a few rides I can say that the oval ring doesn't feel much different at higher cadences, but when things get steep and the spin tuns to a trudge, the oval ring works as billed and drives the back wheel more consistently than the conventional round-ring drivetrains I'm used to. installation is simple, and the bulky 2-peice spider and ring of the Force 1 drivetrain is replaced with a light and simple direct-mount chainring. the 1x11 drivetrian is exceptionally smooth and quiet. If you're swapping out rings on a SRAM 1x11, I can't see any reason not to try the Absolute Black RAM CX Oval Direct Mount Chainring.