Race Face

Era ISIS E-MTB Crank Arms

What Our Gearhead® Experts Are Saying:

"For riders running an ISIS-based E-Bike motor who want carbon performance without sacrificing durability, these are a standout option. They’re stiff under load, well-protected against scuffs, and clearly designed with E-Bike stresses in mind."

The Race Face Era E-MTB Crankarms are engineered specifically for ISIS-based E-Bike motor systems, where higher torque output and wider interfaces place increased demands on crank arms. Using a carefully tuned UD carbon construction, these crankarms achieve an excellent balance of stiffness, strength, and weight for aggressive E-MTB use.

A key feature of the Era design is the integrated stainless steel wear plate, which shields high-contact areas from shoe rub and trail damage. This added protection is especially valuable on ISIS-equipped E-Bikes with wider motor housings and Q-factors. Optimized for ISIS spline compatibility, the crankarms deliver secure engagement and efficient power transfer under sustained motor-assisted loads.

Recommended for trail, all-mountain, and enduro E-Bike builds using ISIS motor interfaces, the Era E-MTB Crankarms are a premium choice for riders who demand lightweight carbon performance paired with real-world durability in a high-torque E-Bike drivetrain.