A power meter device was developed by placing a PolyPower force sensor in between two aluminium plates. The device was mounted in between a cycling shoe and cleat, and was compared to a Monark ergometer. Continuous tests of workloads at 50, 100, 150 and 200 W and an incremental test revealed that the power meter device underestimated the power output. This was most likely due to the power meter device´s inability to measure forces in the anterior-posterior axis and the force sensor´s slow recovery rate.