Originally Posted by
j814wong
So the general consensus is that +-15% is junk [strike]compared to normal powermeter accuracy[/strike].
Fixed - it doesn't even need to be compared to a real power meter.
Originally Posted by
j814wong
Is the innards of a powermeter really such that a $1000 price tag is warranted? One poster brought up that older PowerTaps can be found for $200 or so. Asides from obvious technical improvements that result in greater accuracy, is there really much significant difference between those older models at that price and the newer fancier models?
a) ~$200 is the used price
b) those are the wired units - you need a sensor on the seat stay that is wired to the computer/head unit. This locks you in to that head unit and means that the wheel is not compatible with a Garmin or the like
c) significantly heavier than the new units