Saves 26.4 seconds when averaging 200 watts over 180 km
Optimized aero-shaped crank arms
Additional bolt hole
Half-step increments for Q-Ring orientation
Compatible with ant 130 BCD rings
Bottom bracket not included
Rotor is known for squeezing every last advantage possible out of a crankset, and the Rotor Flow Aero Crank is no exception. Designed using computation fluid dynamics (CFD), which allows engineers to study airflow over any part of the crankarm at any point in it's rotation, the Rotor Flow Aero is not only optimized for aerodynamics, but also for stiffness and weight savings.
The Flow crank's aerodynamics start with the spider—solid, of course, but also boasting an additional mounting hole, which doubles the mounting options for Rotor's ovalized Q-Rings. Since drag varies along the length of the crank, the arm gets wider as it nears the pedal, but it's tapered cross-section stays the same.
Rotor's standard triple-drilled construction is present, and the ends are capped for smooth airflow.
Both Rotor's Q-Rings and standard 130 BCD round rings are compatible with the Rotor Aero Flow Cranks. Frame compatibility is wide, thanks to Rotor’s 30mm universal BB axle, and with the correct Rotor bottom bracket, you'll be able to install the Rotor Flow Aero Crank on BSA, ITA, BB86, BB30, BB30 PF, BBRight, and BB386 frames.