2 X Impac 700c x 20-28c RACE Road Bike Inner Tubes 40MM Presta Valve SV 28 INCH
Impac is produced by Schwalbe, These Impac inner tubes are made from high quality butyl material, butyl is an elastic and airtight synthetic rubber. All Impac inner tubes are 100% recyclable and are produced using 20% recycled old tubes.