Rotor Aldhu Carbon Crank Arms

Sale price $299.99 Regular price $500.00

Prices subject to change. How pricing works →

On sale now — special pricing for a limited time.

Color
Crank Length

In Stock Ships Immediately

SKU: C02-117-21010-0 Option: Black / 175mm

This item is "Final Sale" and cannot be returned or exchanged

This item is "Final Sale" and cannot be returned or exchanged. Once the order is processed, labeled, or shipped, the order cannot be canceled.

Every item goes through quality control prior to shipping. If there are any imperfections or issues, you will be notified prior to the order being processed.

Items on "Final Sale" are for online only. These items are not at our physical stores for purchase.

Stock Availability by Location

RA Cycles Brooklyn Low stock (1 left)

105 5th Ave, Brooklyn, NY 11217718-636-5242

* Available for in-store pickup in 2-4 hours

RA Cycles Walnut Creek — Out of stock

2099 Mt Diablo Blvd, Walnut Creek, CA 94596925-433-7099

Distribution Center - East — Out of stock

Distribution Center - Central — Out of stock

Questions about this product?

Rotor Aldhu Carbon Crank Arms Info

The Rotor Aldhu Carbon Crank Arms strip roughly 100 grams from the aluminum Aldhu without compromising the modular architecture that makes the platform so versatile. Carbon construction increases both vertical and horizontal stiffness compared to the alloy version — meaning more of your pedaling force reaches the drivetrain rather than flexing away into the crank body.

Rotor's Twin Leg design addresses a specific problem: power lost to axle torsion when force is applied through the left pedal. By balancing the load more evenly across the structure, the arms are designed to reduce those losses and keep your output consistent through the full pedal stroke. The 30mm axle interface is built for straightforward assembly with a secure, rattle-free fit, and full compatibility with Rotor's 1x and 2x direct-mount chainrings means you can configure the crank to suit your gearing needs without adapters or compromises.

Rotor Aldhu Carbon Crank Arms Specs at a Glance

  • Material: Carbon fiber
  • Axle interface: 30mm
  • Chainring compatibility: Rotor 1x and 2x direct-mount
  • Available lengths: 155mm, 165mm, 170mm, 172.5mm, 175mm
  • Weight savings: Approximately 100g lighter than aluminum Aldhu arms

PRICE MATCH GUARANTEE

We will price match against advertised or quoted prices from other authorized dealers of the product!

Learn more about our price match guarantee