by davidalone on Wed Dec 15, 2021 9:31 am
Need to post an update on my XCADEY XPower S with Rotor ALDHU:
Earlier in this thread I noted that I needed to scale my XCADEY up by 110% to be in line with my Elite Direto, it was reading approximately 6% low.
Recently, I had the opportunity to test my Elite Direto versus a Quarq Riken and a Power2Max NGEco. The Elite Direto consistently read about 5% more than both the Quarq Riken and NGEco.
I re-tested the Xcadey with no power scaling, and again, the elite Direto was about 6% higher than the XCADEY XPower. The Quarq, NgEco, and XCadey were all tested back to back versus the Elite Direto. The Elite Direto had a calibration test done before the test.
This would mean that the Quarq Riken, Power2Max NGEco, and XCadey Xpower-S are probably reading within 1% in line with each other with the Elite Direto the odd man out.
Slightly frustrating, as the quarq, P2M, and Elite Direto are all 'known and trusted sources' according to most reviewers. I am inclined to follow the crank based power meters at this point, as it's 3v1.
I am trying to borrow a set of Garmin Rallys to test against and will report back if I do. The user I am borrowing it from reports that his Elite trainer (Drivo) also reads about 5% higher from his Garmin Rally.