The Rotor power meters offer one of CPT Cycling's recommended spider based power meters as well as a dual and single sided crank axle based systems.
It may not
suprise you that these are the best option if you are running Q Rings, as the power measurement will compensate for oval shaped chainrings.
The InPower and InSpider power meters report torque effectivness and pedalling smoothness metrics that enable your coach to give you feedback on
the effectivness and efficency of your pedal stroke.
