SCHWALBE TUBE 7 (20") G LINE

Schwalbe SV7

The Schwalbe Standard Bicycle Inner Tube No. 7 is a reliable inner tube made for 20-inch bicycle tires. It fits a wide range of sizes (ETRTO 40–62-406 and 54-428), making it suitable for many folding and compact bikes.

It is made from high-quality rubber that helps it hold air longer, so you don’t need to pump your tires as often. The tube also has even wall thickness, which makes it stronger and reduces the chance of punctures or sudden leaks.

This version comes without a valve nut (bolt), making it lighter and easier to install for riders who prefer a simpler setup.

It works well with Brompton G Line bikes, as long as the tire size is 20-inch (406) and the valve type matches.

Simple, durable, and dependable—ideal for everyday use.