Rotor 2inspider SL Review - Cycling News
John Ross of Cycling News released his ranking for the best powermeters on the market in 2023. The Rotor 2inspider SL was listed as the 'best power meter for lightweight dual sided power measurement'.
What makes this crank based power meter unique is that its true dual power measurement. There's a total of eight strain gauges. Four of the gauges measure measure power from the spindle. The other four strain gauges measure power in the drive side crank arm. That allows true right and left power measurement with no estimation. If you want to know exactly how much each leg is contributing to your power output that's what you need.