China Factory 26 Inch, 27.5 Inch, 29 Inch Aluminum Alloy MTB Bicycle 21 Speed Mountain Bike for Adult

China Factory 26 Inch, 27.5 Inch, 29 Inch Aluminum Alloy MTB Bicycle 21 Speed Mountain Bike for Adult. OEM Customization: Supports custom colors, logos, designs, packaging, and manuals. Aluminum Alloy Frame: Durable aluminum alloy frame with sealed bottom shaft for stability. Multiple Wheel Sizes: Available in 26, 27.5, and 29-inch wheel options for adults. Disc Brake System: Equipped with 160mm front and rear disc brakes for reliable stopping. 18 Years Experience: Over 18 years of OEM manufacturing experience for global clients. 5-Year Warranty: Comprehensive 5-year warranty coverage for peace of mind. CE Certified: Products meet CE certification standards for quality and safety. Large Capacity Factory: 20,000 sqm factory with 380+ staff ensuring consistent supply.