e*thirteen e*spec Aluminum Direct Mount Chainring 38t for Brose S Mag Black ModelNumber=D1858 46 BB/Frame Interface PF30A BB

46 BB/Frame Interface PF30A BB Shell Width (mm) 73 Weight 158 Spindle Interface Type Shimano Hollowtech II Defined Color Black

galling and seizing

Unisex sizes X-Small – 3X-Large

Tektro R369 Road Caliper BrakeDual Pivot Caliper Brake

e*thirteen e*spec Aluminum Direct Mount Chainring 38t for Brose S Mag Black ModelNumber=D1858 46 BB/Frame Interface PF30A BBe*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 wear 53mm Boost chainline 7050 Aluminum Tooth Count 38 Material Aluminum Color Black Designed for ebike Yes Defined Color