Rotor Aldhu Carbon aero 12S 54/42 55/42 56/44 58/44

Rotor Aldhu Carbon Aero Crankset

The Rotor Aldhu Carbon Aero Crankset is engineered for ultimate performance, combining mechanical efficiency with exceptional aerodynamics. Featuring ultra-light carbon crank arms, a robust 30 mm aluminum axle, and precision-machined aluminum chainrings, this crankset is the ideal choice for speed-focused cyclists.

Its unique hidden bolt system, with threading integrated into the spider, enhances both aesthetics and aerodynamics. Paired with an aero spider that completely conceals the chainrings, this crankset is designed to excel in time trials, triathlons, and high-speed road cycling.

Available Chainring Configurations

• Outer chainrings: 54 / 55 / 56 / 58 teeth.
• Inner chainrings: 42 or 44 teeth.

Velo-Perso.com’s Opinion

The Rotor Aldhu Carbon Aero is our top-performing crankset in terms of aerodynamic drag (Cx). It maximizes power transfer while reducing air resistance, making it a must-have for triathlon and time trial competitors.

Strengths:

• Exceptional mechanical efficiency thanks to premium materials and an optimized design.
• Seamless compatibility with Shimano 12 and 11-speed groups.
• Sleek aesthetics with an aero spider fully concealing the chainrings.

Limitations:

• No built-in power meter (but compatible with the Rotor InSpider power meter for those who need one).
• Chainring options are limited to configurations designed for speed efforts (starting at 54/42).

Key Features

• Crank arms: Ultra-light carbon for optimal stiffness.
• Axle: 30 mm aluminum, ensuring strength and low weight.
• Chainrings: Precision-machined aluminum, available in speed-focused configurations.
• Fixation system: Hidden bolt design with threading integrated into the spider for a clean and seamless look.
• Aerodynamic design: Aero spider fully concealing the chainrings, reducing drag and enhancing aesthetics.
• Short arms available ! (155 & 165mm)

Recommended Use

• Triathlon and time trial: Perfectly optimized for TT bikes with a high-efficiency and aerodynamic design.
• Road bikes: Suitable for the fastest road bikes, offering high speed and performance.

This crankset is a premium choice for cyclists looking to combine lightweight design, stiffness, and aerodynamic advantages. With the Rotor Aldhu Carbon Aero Crankset, every watt you generate is maximized, propelling you faster, further, and more efficiently.