Your height: 5'1" to 5'5" approximatly (?).
Frame size = 19.5in/50cm
Comments:
City Bikes: They are designed for comfort and daily commuting, to go to work, to school, to go shopping, etc.. Compromise between performance, comfort and sturdiness. Often loaded with useful accessories increasing the weight.
6 speed: easy to use and perfect for the city and bike paths. There are enough ratios to gradually build speed without forcing too much. Not great for steep hills, ok for medium grade climbs. - Derailleur: Shimano
Tires 26 x 1.75: medium width tires with small thread, for comfort on asphalt and occasional off-road.