Weldtite Inner Tube Schrader valve 650B 1.75/2.10

Self Sealing Pre-filled into inner tubes in the correct dosage * Prevents flat tyres * Seals punctures instantly up to 3mm diameter * Works time after time * Water based with anti corrosion - completely harmless * Inner tube and tyre will not stick together * Will not dry out regardless of outside temperature * Every inner tube is individually tested before leaving the factory. Schrader valve Sizes; 20 x 1.75. 12.5 x 1.75, 24 x 1.75, 26 x 1.75, 700c x 35. 29 x 2.1/2.35. 650B x 1.75/2.10.