Aero Direct Mount Chainrings for Shimano Dura-Ace R9200 Cranks Tooth Count:62T 1/4" hex head and 7/16"

1/4" hex head and 7/16" hex head drive (Wera connecting series 4 and 7)

X0 Eagle T-Type flattop chain is plated with electroless nickel and comes with a PVD coating for unbelievable resistance to corrosion and wear

Bead wall is about twice the width of most competitors for durability and the outside edge has an extra large radius to reduce cuts from sidewall impacts

Provides support on the toughest road rides helping you conquer the steepest of climbs and fastest descents

Aero Direct Mount Chainrings for Shimano Dura-Ace R9200 Cranks Tooth Count:62T 1/4" hex head and 7/16"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 for Shimano Dura Ace R9200 cranks are available in sizes 46T to 50T to provide similar overall range to standard 2x drivetrain configurations.