CARRERA CODE MOUNTAIN BIKE. FORKS : SUNTOUR FRONT SUSPENSION. GEAR SHIFTER : SHIMANO RAPID FIRE THUMB SHIFTERS. BRAKES : POWERFUL V BRAKES. WHEELS : 27.5 INCH WHEELS. FRAME SIZE : 18 INCH MEDIUM ADULTS. SADLY IT HAS A FEW MARKS PLEASE LOOK AT THE LAST TWO PICTURES.