Wolf Tooth Components Shimano Powertrac Elliptical Chainring

Designed for 110 BCD Cranksets. Its proprietary design has an ovality of 10% and a timing of 112 degrees after top dead center which provide the benefits of an oval ring without the traditional downsides of oval rings. This chainring features the patent pending asymmetrical Drop-Stop tooth design for the best in wear life, mud clearance, and chain retention.

The simplest way to explain the way these rings feel is having 2 teeth less in the weak part of your pedal stroke and 2 teeth more where you have the most power
Features Wolf Tooth's Drop-Stop tooth design for maximum chain retention
Optimized for use with 10, 11, and 12 speed chains
Not compatible with 9 speed chains
If using a 9 speed drivetrain use a 10 speed chain (shifts and works well on a 9 speed drivetrain and fits the ring tighter for better chain retention