Originally Posted by
globecanvas
Sure. My point about accuracy was just that any crank-based system will measure cadence more accurately than a powertap, because a powertap isn't using its accelerometer (or any other mechanism) to measure cadence, it's inferring cadence from peaks in torque. My comment was intended to mildly refute shovelhd's statement that a powertap uses its accelerometer to measure cadence if there's no cadence sensor installed.
It's all pretty pedantic.
agree that it's pedantic, but there's still some learning involved.
magnet > accelerometer on the crank (inferring position and making a calculation) > the PT method of using torque and speed to take a guess at instantaneous cadence.
lots of folks rushing out to ditch their magnets when it's a worse solution in many ways. funny to see so many people talking about what a pain a magnet is. i don't get that one. saw lots of talk about destroyed RDs. really?