Upgrading power of an E-Bike

[Tony Cygan <tonyc@plug1in.com>]

My wife has an E-bike that she would like to get faster speeds and pickup
from.
It's their 24volt model.  I've riden their 36volt model and it's much better
or course
due to the increased voltage.  I was wondering if anyone knows if it's
possible
to modify the 24volt with higher power components.  Would I need to change
out all the parts vs some of them.  Would the current motor work with higher
power.  What if I put in a different controller that let more current to the
motor.
Any help would be appreciated.  Thanks.

Tony Cygan
tonyc@144volts.com
http://saccityweb.com/tonyc/
"If your exhaust pipe was in the middle
of your steering wheel, would you still
drive your car?"