Richard Sachs wrote:
there were rifled seat tubes at least 18-24 months prior to slx/spx complete rifled sets. (Dale's note; these were to reinforce seat tubes
18-24 months prior to when? when was SLX introduced?
I say mid-late 70s at best, and high odds that it's a mexican benotto.
At best? Meaning at the newest or at the latest?