Finally an environmentally friendly tube! Made from modified thermoplastic elastomer compounds (TPE), Foss EFT can be recycled with other TPE products, thus minimizing waste and protecting the environment.
Explosion proof – the EFT is a highly polymerized un-vulcanized rubber composite. When punctured, the material forms an air-tight seal around the nail or glass, retarding the leak speed, giving riders extra time to react.
The other problem with the big wheels is that the inner tube weighs a ton! These tubes are made by FOSS and they have taken the mountain bike world by storm. Not only are they light but they have self sealing properties for thorns and other intrusions and can be thermally repaired.