E*thirteen

The Corona Helix Core e*spec Steel Direct Mount Avinox 34T by E*thirteen is designed for those who demand maximum reliability from their e-mtb, without sacrificing shifting precision and durability over time. Designed for gravity, trail, and electric enduro use, this steel chainring is ideal for those who cover altitude and kilometers on challenging terrains, where resistance and quiet operation really make the difference. Thanks to the Direct Mount Avinox system, installation is clean and immediate, while the tooth profile optimized for e-bike use ensures smooth transmission and better chain retention even on the roughest sections. If you are looking for a robust, efficient chainring ready to withstand the high torque of modern motors, the Helix Core e*spec Steel 34T is a safe choice to give your e-mtb a concrete and lasting upgrade. Main features of the Corona Helix Core e*spec Steel Direct Mount Avinox 34T: Chainring specific for e-mtb, designed to handle the high torque of electric motors High-strength steel construction for longer durability compared to aluminum chainrings Direct Mount attachment compatible with Avinox system for simple and clean mounting 34 teeth, ideal for a balance between climbing power and flat speed Tooth profile optimized for better chain retention on uneven terrain Smooth and quiet operation, designed for intensive use on trail and enduro Robust and reliable solution for those seeking a lasting upgrade on their e-mtb drivetrain For Avinox M1 / M2 / M2S