e*thirteen e*spec Aluminum Direct Mount Chainring 38t for Brose S Mag Black

e*spec Direct Mount Chainrings use e*thirteen's M3 narrow-wide tooth profile which reduces weight without sacrificing chain-retention. These lightweight and well-designed chainrings are adapted to work with Brose S Mag eBike motor configurations.The M3 dual width tooth profile eliminates chain noise and decreases overall system wear53mm Boost chainline7050 Aluminum