Aldhu Carbon Cranks

Unlike conventional carbon crank arms, Aldhu Carbon crank arms are manufactured from high-modulus carbon fibre, produced through a high-temperature graphitization process exceeding 2000 ºC. The result is exceptional stiffness, outstanding dimensional stability and highly efficient power transfer.

Aldhu Carbon crank arms are exclusively available with our 30 mm spindles. This offers a significant advantage, as the spindle is manufactured from 7075-T6 aluminium and its thicker diameter design makes it both lighter and stiffer. As a result, the combination of Aldhu Carbon crank arms and a 30 mm spindle delivers lower weight and greater stiffness compared to traditional 24 mm steel spindles.

The patented interface between crank arms and spindle offers a simple assembly but with a firm fit. This design solves a specific problem, which is that power losses are mainly generated by axle torsion under pedaling force. To address this, the robust axle reduces power losses that occur when force is exerted on the left pedal. The balance achieved to minimize these losses is called Twin Leg Technology®.