Designed for racing and for those looking to optimize each detail in pursuit of speed Wolf Tooth Aero Chainrings are strong lightweight and profiled to mate perfectly with your crankset for a clean integrated look. Taking advantage of 1x drivetrain systems and wider-range rear cassettes Aero Chainrings provide similar overall range to standard 2x drivetrain configurations. They feature Wolf Tooth’s patented Drop-Stop design for the best wear life chain retention and mud clearance. Drop-Stop ST is specifically for the Shimano 12-speed Hyperglide+ chain which is used by GRX 800 12-speed.