2005 Ktm 50 Senior Adventure, 2005 KTM 50 Senior Adventure - 2005 KTM 50 Senior Adventure -Perfect beginner bike for kids getting into riding. The 50 Senior Adventure is the perfect match for small racers between the age of 6 and 8. This bike shines with its robust air-cooled engine, increased travel and front disc brake. The seat height can be set to 650 or 675 mm.