Jack Bicycle is located just outside the Osan Air Base and Camp Humphreys' main gates. If you need a quality bicycle, riding jackets and other bicycle accessories and equipment, Jack Bicycle will take care of you! We sell only quality bicycles and back all of them with a 1-year warranty. Mention this ad and receive 25% of your new bike! Please call 031.663.7163 or 011.228.3825 if you have any questions.