The FSA E-Bike CK-746-2/IS Crank Arms are a high-quality component designed specifically for e-bikes. Made from durable aluminum, these crank arms are built to withstand the demands of electric-assisted cycling. With a length of 170mm, they are suitable for a range of riders and provide excellent power transfer to the pedals.These crank arms are compatible with a range of e-bike motors, including Brose, Fazua, Yamaha, and Polini. This makes them a versatile choice for anyone looking to upgrade their e-bike's drivetrain. The ISIS drive system ensures a secure and reliable connection between the crank arms and the motor, providing a smooth and efficient ride.At just 456g, these crank arms are lightweight and won't add unnecessary bulk to your e-bike. They are finished in a sleek black colour, which will complement any bike's aesthetic. Whether you're a serious e-bike enthusiast or just looking to upgrade your ride, the FSA E-Bike CK-746-2/IS Crank Arms are an excellent choice.