Picked this up for $12 at the thrift store

That’s pretty much a steal if it has Shimano 105…but looking at the brifters, mostly likely has something lower. Still $12 ain’t bad.

You got to post more picture that ar clearer and of the other side, showing the drivetrain…crank set, derailleurs etc.

get rid of the goddamn stand, you have ascended dont go back to being a pleb!