Powertap are hub-based. SRM are cranks. Polar do one that works it out based on chain tension or something? You use the HRM alongside the power meter. Because you still want to know if you make more power for lower HR. I like my Polar data anyway..
@hippy started
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Powertap are hub-based. SRM are cranks. Polar do one that works it out based on chain tension or something?
You use the HRM alongside the power meter. Because you still want to know if you make more power for lower HR.
I like my Polar data anyway..