Pair 20x1 3/8 Bicycle Tyres & Innertubes Black Cycle 37-451 Vintage 20 x 1 3/8
Innertubes supplied are 20x1 1/8 which fit a 20x1 3/8 just fine, they will also fit the following size tyres Traditional Style 20x 1 3/8 Tyres & Innertubes. THESE ARE FOR TRADITIONAL FOLDING BIKES (20X1 3/8) AND.