- Heavy Duty inner tube: 26″x2.10″/2.40″ FV48MM(52/62-559) 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 the scope of application is expanded, Compatible with 26×2.10 26×2.125 26×2.15 26×2.20 26×2.25 26×2.30 26×2.35 26×2.40 tires
- HEAVY DUTY – Air Tightness: Using high elasticity and high quality butyl rubber and EPDM rubber, the thickness is increased by 40%, and the air tightness of the inner tube is increased by 200% than that of the ordinary butyl inner tube; After inflation, the tire can maintain a higher air pressure for 6-9 months, greatly reducing the inflation frequency. Good air tightness helps keep tire pressure stable, thus improving driving safety.