ROCKBROS Pack of 2 24g Ultralight TPU Inner Tube 700 x 18-28C Bike Inner Tube Lightweight Road Bike 65mm/85mm Valve TPU Tyre 28inch 700C

• Lightweight and Low Friction: The inner tube is made of TPU material, which has excellent lightweight characteristics and weighs as low as 24g, effectively reducing the rotational weight of the wheelset. At the same time, it has less friction with the outer tyre and rim, making riding easier and more efficient
• Compact and Convenient: this inner tube is nearly 70% smaller in size compared to traditional butyl rubber inner tubes. Convenient to carry, it can be easily packed into cycling backpacks and toolkits, providing great convenience and protection for cycling
• Strong Compatibility: The inner tube with a 65mm valve height fits rims under 55mm in width, while the one with an 85mm valve height suits rims under 75mm in width. One size of inner tube can be compatible with most rim widths, so there's no need to prepare multiple ones for rims, which effectively saves your time and energy
• High Air Tightness: There is only one ring of connectors around the air valve of the inner tube, which greatly improves its air tightness. Meanwhile, once filled with air, the inner tube can maintain a stable air pressure for a long time, eliminating the need for frequent pumping and allowing you to focus on riding
• Puncture Protection: The TPU material's high elasticity and toughness offer the inner tube extra protection against punctures. It can effectively resist puncture risks from sharp objects like small stones and broken glass, reducing the risk of flat tyres

ROCKBROS bicycle inner tube bicycle TPU tube road bike tire 700C Presta valve for 18-28C Universal PortableLightweight 2-pack tube Brand: ROCKBROS Material:TPU Valve:Presta 65 mm / 85 mm Color:Green Weight:approx. 24 g