Tubing
Cin-City-Cycles' tubing is made of locally sourced (as much as possible!) steel alloys which contain chromium and molybdenum, also known as "Chrome-Moly" or chromoly. Read about chromoly. The advantage of this type of tubing is that it is very light-weight and -- at the same time -- durable.
You can read more at various manufacturer websites:Paints
John does all his own paint jobs, though he sends chroming and powder coating out. He prefers low VOC paints for his own safety and to avoid the pollutants in other paints.