Your height: 4'6" to 4'9" (138 to 146cm) approximatly (?).
Frame size = 18in/46cm
Comments:
Hybrid Bikes: they are a good compromise between performance, comfort and sturdiness. Good for the city and bike touring, rather light weight and narrow tires, many gears to go anywhere.
24 speed: perfect to go everywhere including going up very steep hills. There are 3 front chain rings and 8 rear gears. - Derailleur: STX RC
Tires 700 x 38c: meduim width tires with small thread, for comfort on asphalt and occasional off-road.