Aero Sport 4 x Self Sealing Butyl Rubber 20" x 1.75 - 2.125 Inner Tubes Schrader Valve

This listing is for four self seal 20" bicycle inner tubes
Aero Sport self sealing butyl rubber inner tubes 20" x 1.75 - 2.125 Schrader Valve
ETRTO 47/57 - 406
Each tube has self sealing liquid that can repair a puncture up to 2mm without the need of a repair kit.
100% Butyl rubber tube restricts air loss which increases tyre life and maximizes performance.
Aero Sport tube have excellent air retention properties 500%+ compared to natural rubber (Refers to Dow Corning gas permeability test data 1972)
100% Butyl rubber has increased durability and is more resistant to punctures
Each Aero Sport Butyl tube is inflated under pressure for 24+ hours to ensuring 100% no leaks
Aero Sport tubes are easy repairable using Awe Self Seal repair kits or any quality repair kit.