the top tube is the tube going from the bottem of the seat post to the headset (near the handle bars)
You're probably thinking of the top tube, AKA cross bar.
Yes? It's a size measurement, probably from the center of the cranks to the top(cross)tube. Do a search for bicycle sizingor bicycle fitting and you can read up on whether that bike is likely to fit you or not.
Bicycle tube valves are one-way valves. They let air pass one way, then holds it in.
I don't get this question. Bikes have several angles, seat tube, steerer tube ASO
the red top tube has no additives, the gold/speckled top tube has a gel in it but the explain red top tube has nothing nothing nothing in it.
Either an SST or Red-top tube.
No, a tiger top tube is different from a tube with a plain red top.
A Bicycle Pump is used to pump the tyres on Bikes it is normally a simple hand operated device which pushes air through a tube atached to a nozel which is screwed to the Valve on a Bicycle inatube the air is then forced into the Bicycle Tire.
The phrase "tube top" came from the shape of the outfit when it is worn. A tube top has no selves and no strings. The reason it got it's name of tube top is because ones body theoretically makes the outside of a tube.
Scott
If the width is OK - yes
Blue top or Light Blue top tube