I have both the Powertap G3 and Stages. Friend of mine also has a Stages, and before this he also had a Powertap (but he no longer has his Powertap).
anyway, we both tested our Stages power meters against my Powertap G3, and both Stages meters (his and mine) report about 11% - 13% lower in wattage (normalized power) reading than my Powertap G3. And although he no longer has his old Powertap, he also acknowledged that the reading of the Stages is lower than his old Powertap.
Even though the numbers between the Powertap and Stages are different, but the Stage is still consistent (precise). Precision of the Stages (as shown by its graphs) mirror the precision of the Powertap. Still, it does bother me that the accuracy between the Stages and Powertap can be at 11% - 13%.
Does anyone who has a Stage can verify this observation when compared to other power meters I'm most definitely curious.
anyway, we both tested our Stages power meters against my Powertap G3, and both Stages meters (his and mine) report about 11% - 13% lower in wattage (normalized power) reading than my Powertap G3. And although he no longer has his old Powertap, he also acknowledged that the reading of the Stages is lower than his old Powertap.
Even though the numbers between the Powertap and Stages are different, but the Stage is still consistent (precise). Precision of the Stages (as shown by its graphs) mirror the precision of the Powertap. Still, it does bother me that the accuracy between the Stages and Powertap can be at 11% - 13%.
Does anyone who has a Stage can verify this observation when compared to other power meters I'm most definitely curious.