Continental Race 28 700 x 20-25c Road Bike Inner Tubes - 42mm Presta Valve (Pack of 3) - with Ano Adapters,Black / Gold : Amazon.co.uk: Sports & Outdoors
Continental Cross 28 700 x 32-47c Bike Inner Tubes - Presta 60mm Long Valve (Pair),Black & Slime 10026 Bike Tube Puncture Repair Sealant, Prevent and Repair, suitable for all Bicycles : Amazon.co.uk:
LifeLine Wide Road Inner Tube | Wiggle
Schwalbe 2 x 28" / 700c Inner Tubes 700x38c With Presta Valves,Black : Amazon.co.uk: Sports & Outdoors
Continental Race 28" Road Bike Inner Tube 700c x 20-25mm Presta Valve - 80mm | eBay