Bosch - e*spec Direct Mount Chainring

Upgrade your e-bike drivetrain with our Bosch e*spec Direct Mount Chainrings. Our M3 narrow-wide tooth profile reduces weight without compromising on chain-retention. While the steel version is a direct OEM replacement, the premium aluminum versions provide cleaner aesthetics, lighter weight, and long-lasting performance perfect for when you're ready to upgrade from your original ring. Conquer your e-bike trails at a great price—power up your drivetrain now! Looking for a 34T steel ring? Snag the updated one here: Bosch - Helix Core e*spec Chainring