If you could stand going tech, there is a cool unit called the Veypor that does speed, rpm, acceleration, HP (or kW for you), and has a computer interface so you can geek out.
I've resisted the temptation so far, but I would like to have one. Maybe I should bust my speedo too, then I'd have to do something.
Anyway, you can get more info about the Veypor and buy it from these folks:
Veypor
New Thruxton Veypor Page
