He used solid steel for the entire structure.
The wheels were secured on both sides with spacers and locked with lateral wedges.
Then, he made the triangle rod to connect the front and back of the bicycle.
The bottom of the triangle rod was where the axle of the pedals was placed.
Special connectors were used for the triangle rod connection, and then welded with molten iron.
Next was a seat, along with a rear seat.
Below, two columns connected to the rear wheel, which in turn had horizontal rods connected to the triangle rod.
All these connections used specialized connectors.
The design of the connectors was extremely troublesome.
He handcrafted iron blocks, drilled holes in the middle, inserted the rods, and drilled side holes, securing them with wedges.
The rods for the frame, calculated for size, took two days to cast.
The installation took even longer.
