Originally Posted by Retro Grouch
Many of the functions on computers really only exist for their "bragging" value. I mean, what other use does "max speed" serve?
That said, you'll want your bike computer to be calibrated in whatever units the people that you're trying to impress will understand.
Nah, I like to know the max speed so I can try to beat it! It is good for bragging purposes though. Especially for non-cyclists. You went 46.5mph on a bicycle???