Your height: 5'4" to 5'7" (162 à 170cm) approximatly (?).
Frame size = 21.25in/54cm
Comments:
Road Bikes: They are lighter and designed for speed and performance, comfort is less important. For racing, touring and long rides on bike paths and roads. Narrow wheels and tires are fragile and require more maintenance.
18 speed: perfect to go everywhere including going up very steep hills. There are 3 front chain rings and 6 rear gears. - Derailleur: Shimano
Tires 27 x 1 1/8: very narrow tires, slick, for racing on asphalt.