Has anybody experienced significant power drift with their pedals?
I’ve had it with my Vector 2 (dual) for a few weeks now. See screenshot for an example. The first ~15 min of this 45 min segment I could feel that the power was accurate (using RPE, HR and pace), but it was gradually drifting up, even though HR and RPE (and cadence and speed) were decreasing.
This example is from a couple of weeks ago, and it’s getting worse. Today’s 3 hour ride required 4 or 5 calibrations, and after each calibration I could feel that the power was in the right ballpark, but then after 20 minutes or so it starts drifting.
The drift is sometimes up, sometimes down.
Batteries are fresh (I actually changed just before I started experiencing these issues - could there be a connection?).
And the pedals have been on the bike for a long time with no problems until a couple of weeks ago so the torque should be fine.
Any suggestions and advice would be helpful!