YunSCM 2-Pcs 700C Bike Heavy Duty Tubes 700x18C/25C ETRTO 18/25-622 FV48mm Presta Valve Compatible with 700x18C 700x20C 700x21C 700x22C 700x23C 700x25C Road bike Tyre Tubes

Compatible Size: 700Cx18C/25C FV48(18/25-622) bicycle heavy duty inner tube, enhanced the ductility of the heavy load tyre, so that these inner tubes are ideal for a wide range of applications, compatible with 700x18C 700x20C 700x21C 700x22C 700x23C 700x25C 18-622 25-622 42-622 mountain bikes, road bikes, Cruiser bikes, and e-bikes; and the increased thickness meets the demand for longer mileage and heavier loads of today's popular e-bikes High Quality & Durable Tube: The bike tyre tube made of high quality butyl rubber composite material, high performance hose has higher puncture resistance than traditional hoses. The thicker tyre body can withstand more friction and abrasion, which extends the life of the hose and reduces replacement frequency and maintenance costs. And it can be used for a long time More Air Tightness: Adopting high elasticity and high quality butyl rubber and EPDM rubber, the thickness is increased by 40%, the air tightness of the inner tube is increased by 200% compared with the ordinary butyl inner tube; the tire can continuously maintain a stable inflation air pressure state after inflation, which dramatically reduces the frequency of inflation, and the good air tightness helps to keep the pressure of the tire stable, which improves the driving safety and efficiency Excellent Shock Absorption Ability: The heavy, strong, highly durable butyl rubber made from these inner tubes is a perfect shock absorber to reduce vibration and eliminate the shock caused by bumps and rough surfaces on the road or pavement. Heavy Duty butyl rubber for maximum ride comfort - upgrade your ride experience Package Contains: 2PCS heavy duty bike tubes 700Cx18C/25C FV48mm Presta Valve. Easy to install and remove, and check the valve position to ensure that it is installed in the correct direction Tip: Before installing the inner tube, please put the inner tube into the water for inspection, if there are bubbles, it means that it has been damaged, you can contact us. Check the valve position to ensure that the installation direction is correct. Note: The inflatable inner tube should avoid puncture by sharp objects