Promend™ 14/16/20 Bicycle Inner Tube for BMX, Folding Bike, Kids Bike & Bromptons

The Promend™ 14/16/20 Bicycle Inner Tube comes in sizes that afor BMX, Folding Bike, Kids Bike & Bromptons.

About Promend™ 14/16/20 Bicycle Inner Tube

The 16 and the 20 on the sizes refer to the wheel diameter and therefore cannot be interchnaged. Please confirm if you bike has a size 14, 16 or 20 tyre.

• 16×1 1/8 – narrow, light use (e.g., Brompton race-style tires)
• 16×1 3/8 –  more cushioning, common on folding or kids’ bikes
• 20×1.5  – bigger bikes, wider tires, more durable