Overstated Computer Speed and Distance again

[chuckred]

I kind of hate myself for this, but Keno's question was stuck in my mind like some old bubblegum song... I guess it takes a sick mind to be a cyclist.

I had both my Garmin 305 and Campy ergo-brain - set at 2096 on my ride this AM, so I figured I'd see how close they were.

Distance was off by .09 mile - less than 1%.
Average speed was off by .1 mph - almost 1%.
Max speed was off by .3 - about 1%.

In all cases, the Ergobrain was about 1% higher than the GPS. Now I can stop losing sleep at night!

[gt6267a]

don't remember what i set the cyclocomputer to, whatever they said for 23s, didn't even bother with the rolling test. i frequently have the exact same milage and ave speed as my friend gets off his garmin. no biggie to get this right.

[SadieKate]

You guys are aware of the Golden Rule, aren't you? At the end of a ride with multiple computers available (on yours or someone else's bike), you always record the highest mileage and avg speed shown - even if each number is on a different computer.