Medical Definition of GERMICIDE. : an agent that destroys germs.
The standover height of a bike is the height of the frame when you're standing over it, and the distance between the bike's top tube and your goolies is the important factor there! Good luck, and the link below is to a webpage about Standover Height... Source(s): http://www.sheldonbrown.com/gloss_st-z.h...
Seat height. Getting your seat height right is an important aspect of road bike positioning. The rule of thumb is that your knee should have a slight bend in it when you're at the bottom of the pedal stroke. You can normally achieve this by having a straight leg when you put your heel on the pedal in the six o'clock position.