The ROTOR ALDHU Crank Arms are high-performance road crank arms engineered for competitive and performance-focused cyclists. Precision CNC-machined from 7075-T6 aerospace-grade aluminum, they deliver an exceptional stiffness-to-weight ratio for optimal power transfer. Designed as part of ROTOR’s modular ALDHU crank system, these crank arms are compatible with various spindle options and both round chainrings and ROTOR Q RINGS (oval). The 165 mm length is ideal for riders seeking improved cadence efficiency, better aerodynamics, and reduced hip strain.