Tells motorists and other cyclists how fast you're riding.
Darn! Doesn't read higher than 70. What good is it?
If I had one I would program the computer to think I had larger wheels/tires than I actually do so that it would report higher speeds. Then the paceline would respect me!
Cross Check Nexus7, IRO Mark V, Trek 620 Nexus7, Karate Monkey half fat, IRO Model 19 fixed, Amp Research B3, Surly 1x1 half fat fixed, and more...
If I'm riding 15 mph and stuck behind some guy showing "25 mph" on the back of his vest, that's not going to whomp up a lot of respect in my mind.
"be careful this rando stuff is addictive and dan's the 'pusher'."
Does it come with an 'exaggerate' button in case you're having a bad day and are embarrassed about your speed?