"What Our Gearhead® Experts Are Saying: ""The Eagle 70 ISIS Pedal Assist Crank Arm Assembly is built for strength and compatibility with a wide range of e-MTB systems. The forged aluminum construction provides excellent power transfer and durability, while the ISIS spindle interface ensures a secure fit. Available in multiple crank arm lengths, I can fine-tune my setup to match my riding style and terrain. If you're looking for a reliable, no-fuss crankset for your pedal-assist bike, this one gets the job done.""Powering through technical climbs and high-speed descents on an e-MTB demands reliable strength and precision, and the Eagle 70 ISIS Pedal Assist Crank Arm Assembly delivers just that. Designed for seamless integration with ISIS spindle-based e-MTB motors, this crankset offers robust durability and smooth power transfer for an effortless ride. The forged aluminum crank arms provide a stiff, responsive feel, while the multiple crank arm length options allow riders to customize their setup for comfort, efficiency, and clearance. Whether tackling steep technical sections or long endurance rides, this crankset is built to handle the demands of pedal-assist riding with ease."