Wolf Tooth Aero 110 Asymmetric BCD Chainring - 48t 110 Asymmetric BCD 4-Bolt Drop-Stop ST For Shimano GRX 800 Series BLKWolf Tooth Aero 110 Asymmetric BCD Chainring 48t 110 Asymmetric BCD 4 Bolt Drop Stop ST For Shimano GRX Cranks Black. 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