While many cyclists watch distance, heart rate and calories burned another number to watch is the power output. This is a harder number to track however, but now the Laser Spoke might make it just a bit easier – and best of all this third-party device can work on virtually any bicycle.
It can measure the power generated by the rider’s legs at the spokes of the wheel through a laser-based optical system, which consists of a laser and position-sensitive detector that can be mounted on the hub. This laser fires a beam at a prism attached to the rim, and this determines the deflection and the applied torque. Continue reading Laser Spoke Track Pedal Power