Amazon.co.jp: Hardtail Mountain Bike with 24" Fat Tires for Adult Men and Women, Non-Slip Mountain Bike with Front Suspension and Mechanical Disc Brakes, High Carbon Steel Frame, Orange Color, 27 Speed :
Amazon.co.jp: 24" Men's Mountain Bike, Hardtail Mountain Bike, Adult Dual Disc Brake Mountain Rail Bike, 21-24-27-30 Speed High Carbon Steel Anti Slip Bike, C 10 Spoke, 27 Speed : Sports & Outdoors