[USMA:53107] Bicycle Speedometer Question

[Harry Wyeth]

   I don't understand why anyone would want to buy a mechanical 
cyclometer.  All bike shops sell modern digital cyclometers that can be 
set to SI at the push of a button, are pretty accurate, easy to read, 
show multiple screens of information, and don't cost much.  They obtain 
their information from an electrical pick up mounted on the front fork 
that is activated by a small button mounted on the front wheel as it 
spins around.  This is one SI-capable bit of hardware that really works 
well.

HARRY WYETH