Why indeed.. some really nice high strength steel alloys are made ,
and once the tube diameters get bigger, oversize, wall thickness can be kept thin,
Tubes still quite light, but will gain strength.

and lend themselves to small frame builders shops , domestic.
so you can have a frameset made to suit size and weight of the rider..


My last purchase , Bike Friday Pocket Llama , Rohloff, disc Brakes..
Schmidt Hub generator for lights .
Bike Fridays Heavy rider option ..
it's a using a front triangle, rather than the single Boom Tube,
So find it significantly easier to lock up securely.