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.
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.
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.
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.
Last updated at 03/21/2026 06:57:09
Rotor Aldhu 30 Crank Black 170 mm
Delivery $19.99
Rotor Aldhu 3d plus crank arms 150, 155, 160, 165, 167,5, 170, 172,5 or 175mm
Delivery $57.43
ROTOR ALDHU Crank Arms - 170 mm
Delivery between 26–31 Mar $41.14
Rotor ALDHU Cranks None 170mm
Free delivery between Tue – Fri
Rotor ALDHU Cranks None 170mm
Free delivery between Tue – Fri
ROTOR ALDHU 30 Crank Arms 170mm
14-day returns
ROTOR "ALDHU24" Crank Arms 170mm
Free delivery
Rotor Rotor Crank Arms Aldhu 170Mm
Delivery $24.99
ROTOR Inspider Aldhu 1x Universal tooth Crankset
Free delivery
Rotor ALDHU Track Cycling Crankset
Free delivery between 25–31 Mar
originally posted on sigmasports.com
Stiff, light, excellent range of sizes simple and easy to assemble.Have setup all 3 bikes on 150mm Aldhu crank armsCouldn't recommend them anymore highly
originally posted on bikeinn.com
Great cranks, light and stiff. Wide selection of crank lengths, and easy to combine different Rotor axle/chainring/crank setups to suit any use.
originally posted on bikeinn.com
These Rotor cranksets are cool as, it's good to know I can swap out and try different length crank arms without too much hassle and the whole system is well engineered. I'd happily buy these cranks again.
| Mount | Direct mount |
| Length | 170mm, 175mm, 172.5mm |
| Select Colour | Black |
Rotor Aldhu 30 Crank Black 170 mm
Delivery $19.99
Rotor Aldhu 3d plus crank arms 150, 155, 160, 165, 167,5, 170, 172,5 or 175mm
Delivery $57.43
ROTOR ALDHU Crank Arms - 170 mm
Delivery between 26–31 Mar $41.14
Rotor ALDHU Cranks None 170mm
Free delivery between Tue – Fri
Rotor ALDHU Cranks None 170mm
Free delivery between Tue – Fri
Stiff, light, excellent range of sizes simple and easy to assemble.Have setup all 3 bikes on 150mm Aldhu crank armsCouldn't recommend them anymore highly
Great cranks, light and stiff. Wide selection of crank lengths, and easy to combine different Rotor axle/chainring/crank setups to suit any use.
These Rotor cranksets are cool as, it's good to know I can swap out and try different length crank arms without too much hassle and the whole system is well engineered. I'd happily buy these cranks again.
Cranks as you would expect from Rotor. Well packaged and high quality product. Great to have all my road bikes on matching Cranks and combined with a 1 piece spider I have shed some grams as well as moved to 175mm Cranks. Install was simply and easy although the manual is not that useful and neither is the online manuals for Rotor products. Shipping was quick to New Zealand as productvwas in-stock with BikeInn
Replaced my SRAM Red Cranks, as problems getting 165mm. Easy to install (straight swap). Operate faultlessly with the SRAM Red Group Set. Maybe even more positive.
I purchased 165mm ROTOR ALDHU crank arms to pair with my Power2Max NGECO power meter. They're awesome. More specifically, the cranks rotate smoothly, are relatively light, well made, and look great with my bike.
My 2nd purchase and it came in as expected within 3 weeks to Far East. Item was fully cushioned and it survived the 17 hours flight.
I bought these to try out a different crank length (I already have the other components to make up the crankset). They arrived well packaged and as expected. Note this is just the crank arms and the only other things in the box are a couple of O-rings to fit to the 24mm road axle.
Great quality.Still awaiting delivery of other transmission parts to complete install to test functionality and effectiveness.
daily driver, lightweight and durable. probably getting another pair if these ever break
| Mount | Direct mount |
| Length | 170mm, 175mm, 172.5mm |
| Select Colour | Black |
