Discover the ultimate upgrade for your eBike with the RaceFace Aeffect-R Ebike Crank Arm Set collection, designed to enhance performance, durability, and seamless integration with Bosch Gen 4 drive systems. Crafted from high-quality 7050 aluminum, these crank arms deliver exceptional strength-to-weight ratios, ensuring reliable power transfer and long-lasting durability on rugged trails or daily commutes. Available in various lengths160mm, 165mm, and 170mmto customize your riding stance and optimize pedaling efficiency, each crank set features a universal 9/16″ pedal spindle and ISIS spindle interface for broad compatibility and easy installation. Engineered for precision and performance, the RaceFace Aeffect-R crank arms are purpose-built for eBike applications, combining innovative design with advanced engineering to deliver smooth, responsive power delivery. The cranks burly construction and purpose-driven styling make them ideal for eMountain biking, trail riding, and adventure cycling, providing both style and function. Designed specifically for Bosch Gen 4 Performance Line CX drive systemswhile maintaining compatibility with Bosch Gen 2 systemsthey offer optimized motor integration for a seamless riding experience. These crank sets showcase cutting-edge components and technology, including lightweight yet robust aluminum construction and precise spindle interface technology, ensuring maximum strength and reduced weight. With a sleek black finish, they complement any eBike build, providing a modern, aggressive aesthetic suited for serious riders and passionate cyclists seeking reliable, high-performance drivetrain components. Upgrade your eBike with the RaceFace Aeffect-R Crank Arm Sets for unmatched durability, advanced materials, and technology designed for trail-ready performance and long-term dependability. Perfect for eMountain biking, trail adventures, and electric bike enthusiasts who demand superior quality and optimized compatibility with Bosch electric drive systems.