Power Meters / Powermeters (SRM, Powertap, Quarq, Ergomo, Vector, Stages, power2max, P2M, 4iii, InPower, Cinch)

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NotThamesWater

If one of my Powertaps is reading 20W below what I would expect (although I'm still to do a proper calibration test with a known weight), what are my options?

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hippy in reply to @NotThamesWater

You sure it's not just you tired/powerful legs?

What is it's calibration value? Is it within the correct range?

The acceptable range is 500-524

http://www.cyclepowermeters.com/powertap-garmin-calibration-check-76-c.asp

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NotThamesWater in reply to @hippy

You sure it's not just you tired/powerful legs?

Don't thinks so - 2x20s are pretty much bang on usually.

IIRC the calibration value is 7000ish - I gather that's not good.

I'll be doing the test in the link you posted, once I have a known weight / or once I find my luggage scales.

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