Wholesale MTB Bicycle Handle Bar 31.8mm Rise Handlebar Aluminum Alloy Mountain Bike Accessories. Premium Material: Constructed from AL6061-T6 aluminum alloy and high strength steel for lightweight durability. Customizable Support: Offers laser engraving, custom anodized colors, and personalized packaging options. Multiple Sizes: Clamp diameters 25.4mm/31.8mm and widths from 480mm to 780mm available. Diversified Shapes: Includes flat, swallow riser, high rise comfort, and drop bend styles for various bikes. 12-Month Warranty: Covers production defects with free replacement support for quality issues. Fast Delivery: Stock items ship in 3-7 days; customized orders delivered in 15-25 working days. Strict Quality Control: 100% visual and function inspection performed on every batch before shipment. OEM & ODM Service: Accepts custom logo printing, new mold development, and flexible customization.