Hi,
Installed a new computer the other day and after the first ride on a usual course, I noticed my total distance was less than what it should have been. I checked the chart in Sigma's manual and had that correctly set. I rode again with a friend and he came up with approx 1.5 miles more post ride. He suggested that my sensor on the spoke/fork was not at the right distance from the rim. I re-read the manual and found nothing indicating this type of measurement.

Is there a set distance where the sensors must be on the spoke/fork?

Thanks,
Mike