Wolf Tooth Elliptical 104 BCD Chainring - 34t, 104 BCD, 4-Bolt, Drop-Stop B, Black

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 Drop-Stop chainrings are designed use with 1x9, 1x10, 1x11 and 1x12 drivetrains with all 10-, 11-, and 12-speed chains, with the exception of Shimano 12-speed chains Shimano 12-speed chains require the use of Wolf Tooth's Shimano 12-speed specific chainrings If using a 9-speed drivetrain, use a 10-speed chain, which will provide a tighter fit better chain retention