Long-term user of Rotor cranksets here, so became interested as soon as Rotor released Aldhu carbon, in fact I got in touch with Sigma re carrying them before they had them listed (massive kudos to Joe for dealing with me over a few weeks). These cranks replaced the 3D+ cranks which were in turn downstreamed to the second-best bike. I needed a new Sigeyi spider PM to go with the Aldhu fitting, but at £230 apiece that was an easy extra expenditure to make. The cranks came in 80g lighter all in vs 3D+, were easy to fit and have worked as expected. I had some reservations about the DuraAce-like glossy finish, but even that has grown in me after a few rides. All in, great product, not as light as some boutique options out there, but not as expensive either. Great experience ordering from Sigma as usual.
Product Details
Rotor ALDHU Carbon Crank Arms
A simple, stiff and lightweight set of crank arms, the Rotor ALDHU Carbon are an easy upgrade to your existing Rotor crankset to improve performance. Designed for use on road, track and even gravel bikes, the ALDHU Carbon Crank Arms can easily be paired with Rotor's own INspider power meters to obtain power data as you ride. With an 11% increase in vertical stiffness and a 100-gram weight saving compared to the alloy version, these cranks will provide noticeable performance gains for any type of rider.
Features
- Light and modular fully carbon fibre crank arms
- Multipurpose design suitable for road, track, triathlon or gravel
- Designed to work with Rotor's one-piece direct mount chainrings and power meters
- 100 grams lighter than its alloy counterpart
- 11% increase in vertical stiffness and a 36.1% increase in horizontal stiffness
- Manufacturer claimed weight: 260 grams (size 172.5mm - crank arms only)
- Q-Factor: 147mm (standard axle) / 152mm (offset axle)
- Compatibility: BSA30, ITA30, BB30 bearing kit, PRESS FIT 4630, UBB4630, BB386, PRESS FIT 4130
Specifications
- Discipline Compatibility
- Road, Gravel
- Spindle Interface
- 30mm
- Crank [Maker]
- Rotor
- Crank [Model]
- ALDHU Carbon
- Intended Use
- Performance
- Product code
- 1364798 / 54295716757850
Reviews
Only a few rides so far, but all positive. Cranks feel stiff and responsive.
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
1 question answered
Is this compatible with the 30mm rotor axle? or is it for the 24mm axle?
Hello, I can confirm that this would be compatible with a 30mm axle. Many Thanks Liam