my dad kept telling me it was aluminum, but I secretly had my doubts because a) most touring bikes are steel and b) it has rust, even a little, which suggests steel... but I will take some pictures tomorrow and upload them, for sure. He told me, he toured so much on it, the only things original left on it are the frame, fork, handlebar and seat. (but do I get looks from having a leather seat, especially from college kids haha).