Bike Powermeter - Crank Based
Bike Powermeters that have installed the power transducer (strain gauges) directly on the crank, are the oldest systems and are often installed in the profile circus. These powermeters are very accurate, although you only have a measuring system on a crankshaft. However, the powermeters are so sophisticated that you can display (evaluate) the other side by connecting the crank axis and mathematical functions. Disadvantage is, of course, the use on two wheels is extremely complex, if not impossible, if, for example, Example: a road bike and a mountain bike.