Continental Compact 20 Presta 32/47-406/451 20-inch bicycle inner tube

The Continental Compact 20 Presta 32/47-406/451 is a 20-inch bicycle inner tube with a 42 mm Presta valve, designed for children’s, folding and other small-wheel bicycle tyres.

Key Features

Construction and Design

The tube is made from flexible butyl rubber, providing reliable air retention and durability under everyday riding conditions. Its evenly vulcanised construction helps maintain a consistent shape and a secure connection around the valve.

Main Functions

The tube maintains the required air pressure inside the tyre and can replace a punctured or worn inner tube. It is designed for tyres measuring 32–47 mm in width and rims with ETRTO diameters from 406 to 451 mm.

Use and Compatibility

The tube is suitable for compatible 20-inch tyres used on children’s, folding, BMX and other compact bicycles. Its 42 mm Presta valve is designed for rims with a narrower valve opening and can be inflated with a compatible bicycle pump.

Additional Features

The broad size range allows the tube to be used with several 20-inch tyre widths and rim diameters. Before installation, check the complete ETRTO size marked on the tyre, inspect the rim tape and remove any sharp objects from inside the tyre.

Summary

The Continental Compact 20 Presta is intended for cyclists who need a versatile 20-inch inner tube with a narrow valve. Its butyl rubber construction, compatibility with 32–47 mm tyres and 42 mm Presta valve make it suitable for a range of small-wheel bicycles.