Bicycle computers are inexpensive and quite robust.  For around $25 you
can get one, put a piece of velcro on it and stick it somewhere readable.
They have a simple 'correction' proceedure to calibrate them to whatever
your actual tire diameter is.  Garmin also makes some small GPS cycle
computers with all kinds of features.  I sometimes use the one off my bike
for finding or marking an intricate route in the back country or when my
speedo is inoperative.  There are user-sites on the web to post routes, etc,
too..If you have a 'secret' fishing hole or campsite you want to share you
can post your route right off your Garmin, etc.

  The GPS ones are less trouble to mount and portable between vehicles (or
bicycles) because they don't use magnets or barometers, but you will pay a
few hundred for the GPS...Google cycle computers for the cheaper ones..many
are wireless between the speed sensing magnet and the "head unit"

  Don Hanson

> >
> > Personally, I just made a little conversion chart adhered to a
> > 'business card magnet' that is on the dash so I can check my speed
> > when needed.
> >
> > Geo
> >
>
>
> --
> Chris S.
> "No solution is too complex to be executed incorrectly"
>