Ultra Heavy Duty Inner Tube 3mm WALL THICKNESS

Punctures Are A Pain, And Pinching The Tube While You're Tyre Changing Is Also A Pain.

These Ultra Heavy Duty Tubes Will Help To Minimise Both.

Made From 3mm Thick Rubber, They Are As Tough As Old Boots.

Ideal For Off Road And Long Distance Riding

21" Ultra Heavy Duty Inner Tube 4mm 21x300

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