Aluminium would probably suffice, I doubt it would add more than a kilogram even if made of steel. You need an articulation that can hold let’s say 150kg for an overweight person putting all their weight on one leg. It is not a crazy mechanical constraint. Bikes handle more with lightweight structure and more complex mechanisms.
Aluminium would probably suffice, I doubt it would add more than a kilogram even if made of steel. You need an articulation that can hold let’s say 150kg for an overweight person putting all their weight on one leg. It is not a crazy mechanical constraint. Bikes handle more with lightweight structure and more complex mechanisms.