I can't help with regards the power meter but I agree that it's generous with speed - my perception of bkool speed is that it's reasonably accurate compared to perfect road surface and weather conditions. I can hold very similar speed along a section of flat road local to me in perfect weather, as my speed on the flat on the latest chaingang ride. Where it falls down is all the real world things that shave off your speed like wind, road surface, bends, corners etc etc which don't slow you on bkool. And of course, slowing down (for bends & corners) and then having to accelerate again is actually detrimental to your average speed in the real world, not beneficial as it is on bkool
(Sorry - don't actually want to open up that can of worms!

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