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Amazon.com : 26 Inch Tire Bike Wheel Mountain Bike 26-inch Outdoor Sports, 21-Speed, Lightweight Aluminum Mountain Bicycle for Men and Women Bicycles Dirt Bike Exercise Bikes (Black, 136 * 73 * 19CM) : Sports & Outdoors
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XIAOMI QiCYCLE 11speed smart mountain bike 27.5”inch wheel ultra-light variable speed bicycle supports intelligent positioning - AliExpress
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