China I think.
Schwinn is a brand that manufactures bikes but not exclusively for women. They sell everything between city bikes and mountain bikes. They also manufacture cheaper models.
Most manufactures recomend a gap of 0.5-0.6 mm for racing bikes and for street bikes 0.6-0.7mm.Anything between this and you should be fine.
Some manufactures of cool bikes are Acell Group, CCM, Coker, Flying Scot, Focus Bikes, Falcon Cycles, Huffy, Ibis, and Indian. There are literally thousand of manufactures.
CHINA
China
Japan
The netherlands
There are many manufactures of upright bikes. Some brands that manufacture upright bikes are Schwinn, Marcly, Weslo, and Exerpeutic. These bicycles can be found at Walmart.
The country of Germany manufactures the Audi car brand.
i think the usa because they hunt more than we do
YAMAHA About all manufactures make an SX or MX bikes
i think that it is china. it's cheap to pay workers over there