Specialized Myka Expert

[Irulan]

ow similar are the bikes as you move up in quality? Are they all the same frameset with nicer components as you go up?

Frames change ( can get lighter) as you move up in quality, and the component package improves. The first thing they'll do in a "line" is upgrade the component , and then as you move up the line to the next level, a lighter frame will be the next level, again moving up the line with improved components. Hope that makes sense.

Between manufacturers, the biggest different will be in frame geometry, and the base component packages ( ie Shimano vs. Sram, for example)

HTH.