The Motobecane Bistro 8V Stylish City Bikes in 8 Speed Internal with rustproof aluminum frames. 
Check it out.  Components and City Style are key in this design. Internal gear box means easy low maintenance and less fuss. Wide range of 8 Speeds means MUCH easier pedaling than simple single-speeds. Single-speed bikes are great but more gears are best in hills or headwinds.

Wide selection from Eight gears means you can shift to any you wish for the best efficiency and comfort

Lightweight Aluminum Frames means the frame will never rust and is lighter and easier to maneuver

Stylish Matching Quilted Stitched Grips and Matching Super comfort spring saddle and wide tires mean you practically float along with reduced road jostling. A City-rise handlebar position and stem make this the bike super Cityable! 

Compare this bike with others costing well over $1,000, don't pay a giant price tag
buy it for the low price of $499.95 from bikesdirect.com

FREE KICKSTAND INCLUDED ($20 value)

Sizing

Mens S/M (51cm) fits most riders from 5' to 5'9
Mens L/XL (56cm) fits most riders from 5'9 to 6'2"

Ladies S/M (44cm) fits most ladies from 4'10" to 5'7"
Ladies L/XL (49cm) fits most from 5'7" to 5'10"

If you are between sizes: choose the smaller if one has shorter torso/arms or the larger for longer arms/torsos.