MAXXIS FAT BIKE 27.5x3.80/5.00 Inner Tube Presta 38 mm | Probikeshop
Alphatrail MTB Bicycle Inner Tube Rick 26 Inch SV Presta Valve 2x Set with Mobility Guarantee I Compatible Bike Tyres Continental, Conti, Schwalbe, Maxxis, Michelin, WTB & Vittoria Bike Tube : Amazon.co.uk:
Maxxis Welter Weight 27.5 x 1.50-1.75 Bike Inner Tube Schrader AV, 4Pack, STB2037-4 : Amazon.co.uk: Sports & Outdoors