Originally Posted by
patentcad
My Zipp 404 tubies are light. They are FAST. They help when my nose is in the wind @ 30mph. They climb great (you can really feel that lighter weight on a hill). My perception is that they help on hard rides/races quite a bit. Perception is reality.
What else do I have to know?
So now we're determining whether or not they work on the philosophical presuppostion of subjective idealism? Now nothing can be proved!