Originally Posted by
MrSparkles
How do you determine at what height to set the stem? Is it based on my present bar height of a different bike?
Well, that's a complicated question. If your current bike configuration fits you well, then that is a good place to start. You could also pay for a bike fitting.
Originally Posted by
MrSparkles
Do you cut the steerer tube a little too long and ride for a while giving yourself the opportunity to adjust the stem location up and down?
That's what I do. You can move the stem up and down by shifting spacers from above/below the stem to below/above.
Originally Posted by
MrSparkles
Once you cut the steerer tube there is no adjusting the stem higher, right?
There are steerer tube extenders. I've never used one and don't know anyone who ever has used one. More typically people buy stems with more or less rise to fine-tune the height.
Originally Posted by
MrSparkles
I am assuming there are many different lengths and angles of stems so that over time one can adjust their bar position?
Yes, stems come in many lengths and angles.
Originally Posted by
MrSparkles
If there is steerer tube protruding above the headset to the stem, is the steerer tube covered with any thing? Or does it come painted?
You put spacers over the tube and then the headset cap goes over the top. Spacers also come in many sizes and colors.