Here is a nice Purple SEROTTA Colorado TG 8-speed bicycle, with Michelin Hi-Lite Comp 20-571 Tires. 

Seat Tube: 47 cm (18.5 inches). Top Tube: 49.5 cm (19.5 inches). Please see all the pictures for more details. 

Every item purchased from me is shipped the same or next day. LOCAL PICK-UP ACCEPTED AS WELL. Thanks for looking!