Ensure a smooth and reliable ride with this set of two new 20" x 1.75 to 2.125 Schrader Valve Bicycle Tubes, designed to fit a wide range of 20-inch bike wheels and upright bicycles. Made from durable butyl rubber with a standard 0.85mm thickness, these inner tubes provide excellent air retention and puncture resistance for everyday cycling needs. Key Features: · Compatible Size Range: Fits 20" bike wheels with tire widths from 1.75 to 2.125 inches, suitable for most standard 20-inch bicycles. · Schrader Valve Design: Equipped with a 32mm removable core Schrader valve, allowing easy inflation with standard pumps and compatibility with most air compressors. · Durable Butyl Material: Constructed from high-quality butyl rubber, offering superior airtightness and long-lasting performance compared to natural rubber tubes. · Standard Thickness: 0.85mm tube wall thickness provides a balance of durability and flexibility, reducing the risk of punctures while maintaining a smooth ride. · Bulk Packaged: Tubes are shipped in bulk without retail packaging, ideal for cost-effective replacements or bike maintenance workshops. · Lightweight: Each tube weighs approximately 132 grams, adding minimal weight to your bicycle while ensuring reliable performance. Installation Tips: Before inflating, carefully inspect the inside of your tire for any debris or sharp objects to prevent punctures. Ensure the inner tube is fully seated inside the tire casing. Inflate slightly at first to confirm proper placement, then proceed to inflate to the recommended pressure without overinflating to avoid tire damage or bursting. Specifications: · Size: 20 x 1.75 to 2.125 inches · Valve Type: Schrader Valve · Valve Length: 32mm (standard) · Tube Material: Butyl Rubber · Tube Wall Thickness: 0.85mm · Weight: Approximately 132g per tube Package Includes: · 2 x 20" Bicycle Inner Tubes with Schrader Valves Upgrade your bike maintenance kit with these reliable and durable 20-inch Schrader valve inner tubes, designed to provide consistent air retention and a comfortable ride for your cycling adventures.