I have a 2004 Trek 4300 used and it has a Alpha SL aluminum frame that they boast about. But for someone not experienced with frames, what is the significance of Alpha SL Alum. as opposed to Diply-Doo-Da Aluminum if you see what I mean.
I have a feeling the alpha has something to do with sterio-chemistry.
metallurgically, "alpha" means one of the phases present in the solid
state. e.g. "alpha brass". this is opposed to "alpha/beta brass" which
has two phases present.
I have experience in some metals calssifications, but saying a frame has Alpha SL Alum is like speaking a foreign language to me.
Looks like a gimmick for a high tech way of saying 6061 aluminum.
How long does this frame usually last under normal intermediate trail riding conditions (no jumps just bumps)? Im swapping out components and dont want to spend too much if the frame wont last.
Should I be concerned about the scruffs and scrapes under the frame near the BB-Shell? (I've filed them smooth.)