Fat Bike FATBIKE Inner Tube 26 x 4.0 - 5.0 / 4.0 4.2 4.7 4.8 5.0 Presta Valve
Presta Valve (Narrow Valve). (Found mainly on Fat Bikes). HIGH QUALITY INNER TUBE. after being placed within the suitable wheel and tyre. Any tube inflated outside the tyre will only withhold a small fraction of the normal pressure.