Diameters and wall thicknesses matter a lot, 80s AlAn frames were standard diameter heat treated anodized tubes screwed into Lugs and Glued in.
lots of teams rode them to the podium .. Light, for steep run ups, forks, supple to a fault , and were readily pressure Hosed down By the support crew
and handed back to the competitor. some places, the pits guys, waded into the lake and dunked them to get the Mud off.
those look like oversized tubes , so Expect a bit rougher ride , But heck if it's too rough, throw the thing over your shoulder and run with it ,
what ever gets you around the course .