Originally Posted by
fietsbob
some one obviously is blowing smoke up some orifice..
if they will note there has been a big investment in Hydro-form tooling,
where the Aluminum tubes are made to be reshaped
to be able to handle the local stresses of the joint, without adding a lot more metal
in gussets and braces....
OK, It's an admitted over-simplification. Several of my bikes use hyro-formed AL. But still a lot less work/tooling/cost goes in to the engineering of Al bikes than good CF bikes.