Inner Tube – 20×1 1/8- 1 3/8″ PV (451mm)

20×1 1/8- 1 3/8″ Presta Valve for rim size 451mm only.

For use with 451mm rim diameter – 20 inch tires – most common on our Bike Friday Pocket Rocket, Pocket Rocket Pro and Super Pro models. Some of our older discontinued bike models for Tandems and Air bikes also use the 451 wheel size.

Note on 20 inch wheels: Check your bike wheel to make sure you are ordering the correct inner tube size. The bike industry has 2 rim diameters for 20 inch wheels. the most common rim diameter is 406mm, the less common is 451mm.

Note: Brand of tube can change without notice due to supplier availability, etc. and so
no specific brand is promised with purchase.

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Part Number: 987