Rotor ALDHU Crank Arms

MSP £ 225.00
£ 190.00 - £ 190.00
MSP £ 225.00  Save 16%
£ 190.00

Introducing the Rotor ALDHU Crank Arms, with a modular structure that, in combination with axle, spider and chainrings, is able to accommodate a range of rider requirements and bike setups. OCP (Optimal Chainring Position) Mount technology allows fine-tuning of the Q-Rings orientation to optimised pedalling performance and power transfer according to the rider's biomechanics.

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Black

Only 1 in stock, available for delivery

Reserve now, add to basket, collect from our Esher Collection Point from 4pm tomorrow

Reserve now, add to basket, collect from our Hampton Wick Store from 4pm tomorrow

Introducing the Rotor ALDHU Crank Arms, with a modular structure that, in combination with axle, spider and chainrings, is able to accommodate a range of rider requirements and bike setups. OCP (Optimal Chainring Position) Mount technology allows fine-tuning of the Q-Rings orientation to optimised pedalling performance and power transfer according to the rider's biomechanics.

Read full description

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

PRODUCT REF: 802390

UK Delivery Options

Free Delivery on all orders over £30

Estimated delivery within 4 working days. A delivery charge of £1.99 will apply for baskets under £30.00.

 
click and collect with collect+ - £1.99

Have your order delivered to your local shop for just £1.99! For Highlands and Islands, please allow up to 5 working days. Orders can be shipped to UK Collect+ locations specified on the SigmaSports.com website where they will be held awaiting collection for a period of 10 days.

Orders are normally dispatched within 2 working days.

 
Priority 1st Class Delivery - £2.99

Estimated delivery within 2 working days. For Highlands and Islands, please allow up to 5 working days.

 

Next Working Day Delivery* - £4.99

Tracked delivery with 1-hour delivery window. Order before 3pm for weekday dispatch. Weekday delivery only, excluding Bank Holidays. Orders placed after 3pm will be dispatched the next working day.

* Next Working Day delivery is only available on items in stock in our warehouse and excludes pre-order items. Next Day refers to the next working day, Bank Holidays will add an extra working day to the estimated delivery lead times. UK next day excludes Saturday deliveries. This service is not available to some remote postcode areas. Please contact us for help.

 
Saturday pre-12pm Delivery - £4.99

Saturday delivery orders must be placed by 1pm Friday and are only available on items in stock in our warehouse. Orders are prioritised through our warehouse and are delivered on Saturday pre 12pm by courier. Package must be signed for upon delivery.

 

Sunday pre-12pm Delivery - £4.99

Sunday delivery orders must be placed by 1pm Friday and are only available on items in stock in our warehouse. Orders are prioritised through our warehouse and are delivered on Sunday pre 12pm by courier. Package must be signed for upon delivery.

 
Reserve and Collect** - FREE

Reserve & Collect from either our Sigma Sports store in Hampton Wick or our Collection Point in Esher. Just select the Reserve & Collect button in the basket. Please note that bikes orders will require a 10% deposit before we build your bike. We will contact you for payment after you've placed your order.

** Reserve and Collect Collections - Clothing, parts and accessories: Next day. Orders placed on Friday, Saturday or Sunday will be available for collection after midday on the Monday (excluding Bank Holidays). Bikes: 72 hours if in stock at our store, collect in up to 7 days (sometimes quicker) if in stock at our warehouse. Please note that bikes orders will require a 10% deposit before we build your bike. We will contact you for payment after you've placed your order.

 
London Same Day (Order Before 1pm)

We offer a Same Day delivery service into London. The cost is £25.00 under 2Kg and £35 over 2Kg. Place your order before 1pm, deliveries are made Monday to Friday. Please note this option excludes bicycles.

More information on our Same Day delivery options.

 
Bike Deliveries - FREE)

All our bikes are fully checked and tuned and tested by our Cytech qualified mechanics and then securely packaged, ready for despatch. All you have to do is add the pedals, rotate and tighten the handlebars. Typically we can deliver your bike in 7 - 9 working days. Kids Balance Bikes can be dispatched immediately.

Deliveries are made Monday to Friday on a pre-12pm delivery. One of our customer service team will be in contact to arrange a convenient day for delivery.

More information on all our UK delivery options.

Free UK Returns

We offer free 90-day returns and exchanges for UK customers. Sigma Sports will happily refund or exchange any item purchased at Sigma Sports.

More information on the Sigma Sports returns procedure.

European & Worldwide delivery

We ship to a wide range of countries, using DHL. This is a fully tracked service and a signature will be required. Please note, our dispatch time for in-stock items is 2 working days.

All our bicycles are fully checked and tuned and tested by our Cytech qualified mechanics and then securely packaged, ready for delivery. Typically we can deliver your bike in 7 - 9 working days.

 
Delivery Information

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How do I complete my order?

You will be given the option to pay by finance as part of the checkout process. The exact finance options offered may vary depending on the other items in your basket.

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