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@gbj_tester
Not all of them, just the ones which reproduce the 1" threaded steerer and other classic tube diameters. Compared with the classic era, the simple expedient of upping all the tube ODs by ⅛" is a dramatic improvement, enabled by steels like 853 with a higher yield strength than 531. A 31.8mm OD x 0.4mm wall down tube is 10% lighter and 12% stiffer than a classic 28.6 x 0.5