The Spider Mount ALDHU crankset provides more options than ever. With the Aero MAS spider + Aero chainrings (pictured here) the crankset looks as good as it feels. This version uses the 24mm axle for compatibility with Shimano bottom brackets as well as the Trek BB90 standard. The Aero setup performs better in the wind tunnel, and the added stiffness is an extra bonus for riders chasing those extra watts. The standard spider is the option of choice for climbers and classics. The standard spider will ship with standard rings by default; specify your preference for aero chainrings in the order notes if that is your preference. All 1x rings are aero, and the offset is set to center the chainline with our standard 110x4 or Aero MAS spider. Both spiders use the 110x4 bolt pattern for compatibility with 1x or 2x groupsets.
Take control of your crankset with total modularity at minimal weight with ROTOR's new ALDHU cranks. These streamlined cranks combine an innovative modular structure with top-tier 7075-aeronautic grade aluminum, allowing you to adjust your axles and chainrings to individually customize your ride based on your needs, and your bike's standards.
It begins with the 3D+ CNC machining to ensure unmatched rigidity from spindle to chainrings so you can take control on the roughest roads. This iteration of ALDHU takes the specs you see in the traditional 30mm version and pares it down to a 24mm spindle that offers the stiff power of steel, and pairs with any 24mm bottom bracket. A wealth of crank-arm lengths allow you to optimize your power, while OCP Mount technology lets you further fine-tune your ride with Q rings. The ALDHU’s proprietary, patent-pending design is based on the modularity of each crankset component.
This crankset, with its variety of crank length options and compatibility with the INspider power meter, is the perfect upgrade solution for bikes that can only accommodate 24mm crank axles, such as Trek's BB90 standard.
Note: 1x chainrings are only compatible with the Eagle AXS chain, not the AXS flat-top chain.
Optimum Chainring Position (OCP) Mount technology allows the rider to fine-tune the orientation of ROTOR’s oval Q Rings by shifting them one degree at a time, finding the right balance in each pedal stroke for smooth power. This enables the rider to utilize the most powerful part of their pedal stroke to propel them further and allow a touch of relief through the weakest points.
The ALDHU's name comes directly from our racing heritage. It is an abbreviation of Alpe d’Huez to commemorate ROTOR’s first iconic victory at the Tour de France with Carlos Sastre.