Flintronic TPU Bike Inner Tubes,Ultralight Inner Tube, Compatible with Mountain Bicyble Tire 27.5" x 1.90-2.50, Schrader Valve 45mm for Gravel Bike, Mountain Bike, Green

• 【Wide Compatibility】This inner tube fits most mountain bikes and is compatible with multiple tire sizes: 29" x 1.90-2.50, 27.5" x 1.90-2.50, and it provides Schrader Valve 45mm. Please check the markings on the sidewall of your bicycle tire before purchasing and select the appropriate size according to your needs.
• 【Ultra-lightweight and Portable】Our mountain bike inner tube is made of TPU material, and significantly lighter than traditional butyl rubber inner tubes. When folded, its volume is only 1/3 to 1/5 of a traditional inner tube, saving half the storage space. Lightweight and portable, it is the ideal spare tire for rading.
• 【Premium Material】 The inner tube is made of TPU material, which has better puncture resistance than butyl and latex inner tubes, and features flexibility, abrasion resistance, aging resistance, oil resistance, and water resistance. At the same time, it has lower rolling resistance, making pedaling easier.
• 【Practical Design】Our inner tubes feature a one-piece sealed valve, ensuring excellent airtightness, long-lasting air retention, and reducing the risk of leaks. The inner tube wall thickness is 0.2mm ± 0.03mm, balancing lightweight design with structural strength and improved wear resistance. Our inner tubes have a temperature range of -40℃ to 70℃, ensuring stable use even in high and low temperature environments.
• 【Easy to Install】 Our bicycle inner tubes are easy to install, even for beginners.Before installation, inflate with a small amount of low pressure to prevent the inner tube from bending or twisting. Keep the rim and tire inner wall clean to minimize the risk of foreign objects puncturing the tire.

Product Features: -This inner tube is suitable for all riding scenarios, including daily commuting, professional racing, long-distance cycling, and gravel off-road riding. -The inner tube can be inflated using most manual pumps, floor pumps, mini pumps, or CO2 cylinder pumps. -The bike inner tube offers 20% lower rolling resistance than traditional rubber inner tubes, resulting in easier pedaling. Product Specifications: Material: TPU Color: Green Product Size: Mountain Bicyble Tire 27.5" x 1.90-2.50, 45mm Schrader Valve Package List: -Inner tube * 1 -Instruction manual * 1 Notices: 1. The inner tube comes with 45mm Schrader Valve. 2. Before installing the inner tube, please submerge it in water to check for bubbles. If bubbles appear, the inner tube is damaged, please contact us. Check the valve position to ensure correct installation orientation.