Christian L.wrote a review of Absolute Black SRAM Oval Boost148 Direct Mount Traction Chainring on June 19, 2019
Familiarity: I've used it once or twice and have initial impressions
It feels like having uniform effort throughout the entire pedal stroke. The oval gives you a power boost at your strongest in the pedal stroke and extra torque when you're the most vulnerable. I used to get hung up on rocks in that vulnerable part of my pedal stroke and now I keep my momentum. It's less tiring to not get robbed of energy with ill-timed bumps. I also don't have to worry as much about ratcheting to get over certain things. I went from 32T round to 32T oval. The lackluster studies test oval chainrings on the road, while the biggest benefits are on the mountain.