Montague Paratrooper Express Folding Bike, Air Force Blue (18.0") 16in Frame: For riders 48  52. Standover height is 28 18in Frame: For riders 53  510. Standover height is 30 20in Frame: For riders 511  64. Standover height is 31 Speeds: 18, Wheel Size: 26, Folding Time: 20 sec, Folded Size: 36x28x12 Approx Weight: 32lb