The best cycling gear reviewed by road.cc and curated for you.

Rotor ALDHU Carbon Arm Set2021-rotor-aldhu-carbon-arm-set-RCCR

Rotor ALDHU Carbon Arm Set
£349.00

Rotor's new ALDHU Carbon Arm Set is a very light, stiff option with a sleek look. The cranks form part of a modular chainset that will fit a very wide range of road or gravel bikes. The performance is excellent, which is just as well because they are quite expensive.

The ALDHU Carbon is the first full carbon road option Rotor has produced and the arms form part of a modular system, meaning that parts are purchased separately and combined to suit different bikes and riding styles. The cranks, axle, chainrings and spider if required are all available separately.

You can build them into a 1X or 2X setup and even add the Rotor InSpider power meter.

The modular system means the axle is separate and not attached to either crank, with both drive side and non-drive side having self-extracting bolts. Any play within the bottom bracket is then removed by using the preload ring on the non-drive side crank.

When built into a full chainset, Rotor claims a weight of 528g with 50/34 chainrings, which stacks up well against 609g for Shimano Dura-Ace 9100, or SRAM Red AXS with 48/35 chainrings at 587g.

Overall, the performance is impressive and the cranks look great. If you want a really light setup and are happy to pay for it, the ALDHU Carbon Arms are an excellent choice.