AEYINO TPU Bike Inner Tube 28 700 x 33-45C 80MM Presta Valve

• Ultra Lightweight Design：Engineered with high-density TPU, this 700C cycling inner tube weighs only 35g for Road (23-32C) and 40g for Gravel (33-45C)—over 70% lighter than standard rubber tubes. Significantly reduces rotational weight to boost your acceleration, climbing efficiency, and overall speed on long UK rides.
• Puncture Resistant Toughness：Crafted from premium thermoplastic polyurethane with seamless one-piece molding. Highly resistant to sharp gravel, glass, and roadside debris on UK country roads or urban commutes. Superior airtightness maintains optimal tire pressure longer, saving you from frequent pumping.
• Multiple Valve Lengths：Available in 45mm, 65mm, and 80mm Presta valve lengths to seamlessly fit shallow aluminum rims, mid-section wheels, and deep-section carbon aero wheels. Eliminates the need for valve extenders and ensures easy pump head engagement.
• Ultra Compact & Portable：Folds down to a fraction of the size of traditional butyl inner tubes. Easily tucks into jersey pockets, saddle bags, or backpacks without adding bulk, making it the ultimate space-saving spare tube for emergency roadside repairs and endurance tours.
• Road & Gravel Fit：Specifically designed for 28-inch / 700C bike wheels with two width ranges: 700x23-32C for road bikes and speed racing, and 700x33-45C for gravel, CX, and multi-terrain adventures. Packed in an organized individual brand box for clean storage.

TPU Bicycle Inner Tube with Presta Valve，Portable Anti-Puncture Compact Tube for Gravel Bike and Gravel Bike