Originally Posted by
ItsJustMe
What makes racing bikes squirrelly is the short wheelbase and the low caster angle on the front wheel. This also makes them extremely responsive for steering, but that also means twitchy.
Yes, the twitchy is a result of geometry. Now on a motorcycle, you can feel a huge difference in the "flickability" of a bike with lighter wheels. Less force to act against.
If you want to go all geeky on this subject, here is a good page.
Bicycle Physics Enjoy that.
