ethirteen e*spec Aluminum Direct Mount Chainring Brose S Mag Black

Ethirteen's new direct mount e*spec chainrings use their new M3 narrow-wide tooth profile, reducing weight and improvong chain-retention. All ethirteen's chainrings have had a makeover, modernising their appearance and providing weight savings. A similar design has been adapted to work with Bosch, Brose, and Shimano motor configurations.