“Honey, what exactly are you doing?”
“Comparative stats on our hamster’s performance. Did you know she improved 3.4% in km/day last year? I think we should find a coach for her.”
To all who asked,
Sorry, no pics, the poor girl died last year
Never weighed her and no power meter
Composite plastic wheel
Set the computer to the measured 12" wheel in mm
The computer was a ~15 year old Cateye Double Wireless. Mounted the head unit on top of the cage, receiver on the vertical arm holding the wheel and superglued a rare earth magnet to the body of the wheel.
Every day or two I would check the odometer.