Now, let's not get silly here. EVERYBODY knows that you use a hot glue gun for attaching magnets to your bike. You only use superglue when your front fork cracks.

I like the setup I'm describing because I don't have to fiddle around with scrolling through screens - I can look down to my left if I want to know average and instantaneous speed; down and to my right if I want to knoww average and instantaneous cadence. I like the one you posted - much better than the speedometer alone (bigger screen with a lot of data), but I think I'd like two screens better.

This is going to go on my <ahem> older, beater bike. On the new one I'm going to get a real computer; perhaps the one you described - do you know if it has average cadence?

Note that I made a mistake, though, in my initial calcs - I forgot that most tire diameters are given in mm, not cm. So 102 pedal revs/min would be listed as 10.2 mph, not 102 mph.