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978505 / 54296148083034

Product Details

Rotor ALDHU Crank Arms

Rotor's new, highly sophisticated crankset technology has a sophisticated design and its clean aesthetics will complement any setup. The Rotor ALDHU Crank Arms are their lightest to date, engineered from CNC'd 7075 aluminium, with the complete set up weighing around 30 grams less than a standard spider and chainring combination. This process drills three full-depth holes from axle to pedal and results in a crankset that is both extremely rigid and has an exceptional stiffness to weight ratio.

In a collaboration between professional cyclists and engineers, a system has been produced that allows you to fine-tune and optimise your pedalling performance according to your biomechanics, for the highest power outputs at the ideal point of your pedal stroke. The Q-Rings can be adjusted in 1-degree increments to find the OCP (Optimum Chainring Position) for enhanced customisation.

Being a modular system, it's easy to replace individual parts as they wear, or when you want to upgrade. An abbreviation of Alpe d'Huez, the ALDHU system was created to be Rotor's most advanced crankset and one that'll get you up the steepest mountains.

Features
  • Modular structure
  • OCP (Optimal Chainring Position) Mount technology
  • CNC'd 7055 extruded aluminium construction
  • BCD: 110x4
  • Bottom bracket compatibility: BB30, BB386, PRESS FIT 30, PRESS FIT 4130, PRESS FIT 4630, UBB30
  • Axle width: 30mm
  • Axle sold separately
Specifications
Discipline Compatibility
Road
Spindle Interface
30mm
Crank [Maker]
Rotor
Crank [Model]
ALDHU
Family
ALDHU
Intended Use
Performance
Product code
978505 / 54296148083034
Reviews
Rating 5 out of 5
5
Value of Product
5
Quality of Product
5
Rating 5 out of 5
Anonymous,
Verified purchaser
Rating 5 out of 5
ImDobbsy,
Verified purchaser

Stiff, light, excellent range of sizes simple and easy to assemble. Have setup all 3 bikes on 150mm Aldhu crank arms Couldn't recommend them anymore highly

Shipping & Returns

Free UK delivery on orders over £50. Orders are dispatched within 1-2 working days and typically arrive 1-2 working days later.

Return unused items in their original packaging within 30 days of delivery. Return postage is £3.50.

Q & A

8 questions answered

  1. Could I swap dura ace 9100 cranks for these and use the through axle, bottom bracket and rings with these arms 

    Asked by Jack

    1. Hi Jack, You will need the 24mm option of this crank then you can use the Shimano BB, Many thanks Joe W

      Joe W

  2. Helo Want to know if this crank arm can fit T47 bottom bracket 68mm outboard?

    Asked by nrz

    1. Hi there, Yes this will fit aslong as the T47 BB used if for 30mm axels, Many thanks Joe W

      Joe W

  3. Are these compatible with the Rondo Ruut AL2 2021?

    Asked by Fred27

    1. Hi there, With the correct BB fitted this will fit, you will also need to purchase an axle, Many thanks Joe W

      Joe W