Normal Length Schrader Valve Dr Sludge Self Sealing Inner Tube 20 x 1.75-2.125 - 47-57 x 406

High quality inner tubes filled with inner tube sealant in the correct dosage. In the event of a puncture, the solution is forced to the hole by centrifugal force, while the fibres plug the hole immediately and permenantly with minimal loss of pressure.

- Prevents flat tyres
- Seals punctures instantly up to 3mm diameter
- Works time after time
- Water-based with anti-corrosion properties and is completely harmless
- Inner tube and tyre will not stick together
- Will not dry out regardless of outside temperatures
- Every inner tube is individually tested before leaving the factory