YUNSCM 2PCS 20 inch Heavy Duty Bike Tubes 20x1.75 20x1.95 20x2.0 20x2.10 20x2.125 20x2.25 45/57-406 RFV40 Presta Valve Compatible 20x1.75/1.95/2.10/2.125/2.25 Road/MTB Bike Tyre Tubes

• Heavy Duty inner tube: 20"x1.75"/2.25" RFV40 (45/57-406) Heavy duty bicycle replacement inner tube, these inner tubes are ideal for a wide range of applications. Enhanced the ductility of the heavy load tire, so that 20x1.75, 20x1.90, 20x1.95, 20x2.0, 20x2.10, 20x2.125, 20x2.25 tires
• 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.
• 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
• HEAVY DUTY- Ultra Durable: Our heavy duty inner tubes have higher puncture resistance than ordinary inner tubes, and the thicker body can withstand more friction and wear, thus extending the service life of the tube, reducing replacement frequency and maintenance costs. And in long-term use.
• This heavy duty inner tube is compatible with the corresponding models of mountain bikes, road bikes, Cruiser bikes, electric bikes; At the same time, the increase in thickness can meet the needs of the longer driving range and load of the prevailing electric bicycles.
• Package Contains: 2PCS heavy duty bike tubes 20x1.75/2.25 inch RFV40 Presta Valve.Check the valve position to ensure that the installation direction is correct.
• 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.

Still looking for the most durable bicycle inner tube？ Now stop looking and try ours. It will exceed your expectations! Function: Persistence: mtb bicycle inner tube is made of butyl rubber stable and durable. It has amazing sealing properties, ozone resistance, aging resistance and electrical insulation. sizes available: bicycle tube 20×1.75/2.125 FV33. comfort comes first: the replacement tire ensures better damping effect, thereby enhancing the riding experience.