Enhance your bike’s versatility and comfort with this high-quality Bike Seatpost Tube Adapter, crafted from full CNC precision machined aluminum alloy for exceptional durability and a lightweight design. This seat post adapter allows you to easily change the bicycle seat tube size to fit your specific needs, making it an essential accessory for MTB bikes, mountain bikes, road bikes, and more. Key Features: · Premium CNC Machined Aluminum Alloy: Ensures a strong, anti-slip, and corrosion-resistant adapter that is both lightweight and durable for long-lasting use. · Easy Installation and Removal: Designed for quick and convenient mounting or dismounting, making adjustments hassle-free. · Adjustable Seat Tube Size: Enables seamless modification of your bike’s seat tube size, providing a perfect fit and enhanced riding comfort. · Wide Compatibility: Suitable for various types of bicycles including MTB, mountain bikes, and road bikes, offering great versatility. · Multiple Size Options: Available in several size conversions from 27.2mm to a range of outer diameters including 28.6mm, 30mm, 30.4mm, 30.8mm, 31.6mm, and 33.9mm to meet different bike specifications. Specifications: · Condition: 100% Brand New · Material: Aluminum Alloy · Color: Black · Length: 60mm / 2.36 inches · Weight: Varies by size (13g to 54g) · Size Options: - 27.2mm to 28.6mm (13g) - 27.2mm to 30mm (22g) - 27.2mm to 30.4mm (29g) - 27.2mm to 30.8mm (25g) - 27.2mm to 31.6mm (37g) - 27.2mm to 33.9mm (54g) Package Includes: · 1 x Bike Seatpost Tube Adapter Before purchase, please measure the outer diameter of your bicycle seat tube or the inner diameter of your current clamp to ensure you select the correct adapter size. This Bike Seatpost Tube Adapter combines precision engineering and practical design to provide a secure fit and improve your cycling experience.