Giant OCR 2 road/hybrid bike Very lightweight This bike looks and rides like new...a real stunner. It has a doublebraking system which allows you to ride in the typical road bike position or in a more upright hybrid position. It is super fast Frame measures 17.5 inches Ideal for a rider between 4'11" and 5'3" Has STI shifters. This allows you to use only one hand to control both the brakes and gears without ever having to shift your hands from brake lever and back again to gear lever. ...