Quote:
Originally Posted by Mark McM
There are power meter cranks that will completely match the rest of the groupset from all 3 major makers (Shimano, SRAM, Campagnolo), but there are serious disadvantages to all 3 options. Shimano's power meter crank has major accuracy issues, so it is more of a power guesser than a power meter; the SRAM power meter crank appears to be accurate and reliable, but it is disposable - the power meter is built in the chainring, so when the chainring is worn out you'll need to replace the power meter; and Campagnolo's new power meter is not only very expensive, but first reports are that it has poor accuracy.
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Sram offers 3 types of power meters, one that's built into the chainrings, one that's built into the spider, and one that's built into the spindle. Only the chainring power meter is inseparable from a wear component.
https://www.sram.com/en/sram/road/pr...levancy&page=1