Powermeters on spare bikes

[Alex Simmons/RST]

Sitting on the roof rack of a team car puts a lot more stress on a bike than you might think. So it's unlikely to be as easy as you suggest. If it was to just be in the team truck, that might be the case.

I still don't see how that's going to change the slope of the power meter. An SRM doesn't change slope calibration just because it's in a truck, or on the roof of a car, or being ridden for that matter.