Quote:
Originally Posted by GParkes
With my PowerTap Pedals, the right pedal transmits to the left pedal, and left pedal to head unit. The right pedal died, but left still functional and used as single sided on my wife's bike. With respect to your question and cranks, you'd have to find out the signal transmission protocol. Both cranks to head unit independently, or relay like the PowerTap pedals?
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To my knowledge, no dual PM transmits both sides to the HU - they always pair with one primary (receiving from secondary and broadcasting to head unit) and one secondary (broadcasting to primary). I've never heard of a head unit taking two PM signals and adding them together for a single display.
Stages and 4iii allow that pairing to be split, so you end up with two one-sided PMs. Shimano probably does not.