Wolf Tooth Components Aero Direct Mount Chainring - Direct Mount SRAM 8-Bolt, Drop-Stop B, BlackTaking advantage of 1x drivetrain systems and wider range rear cassettes, Aero Chainrings are available in sizes 46T to 52T to provide similar overall range to standard 2x drivetrain configurations. They feature our patented Drop Stop design for the best wear life, chain retention, and mud clearance. Drop Stop B is optimized for SRAM Eagle and Flattop chains. Aero Direct Mount Chainrings for SRAM 8 Bolt Cranks replace your existing spider and