Almost all frames were lugged before Welded Frame Construction mass-production in the 80s-90s.My personal definition for a low-end or gas-pipe bike, is that it can not have lugged construction, the tubes have to be joined together only by weld or braze material. Any lugged frame is a big step up from that sort of construction.
Would be very bendy at best, foldable at worstWondering if anyone has anyone actually built a frame out copper gas pipe tubes.
Left un painted it would look quite something.
Not sure I remember any low-rent bikes of lugless construction growing up as a child. Some Peugeots maybe. I would have thought lugless was one step up as the tubes have to be more accurately mitred. Lugging easily hides poor mitring and therefore is more conducive to the quickest and cheapest manufacturingMy personal definition for a low-end or gas-pipe bike, is that it can not have lugged construction, the tubes have to be joined together only by weld or braze material. Any lugged frame is a big step up from that sort of construction.