Valves and extensions

In the category Valves and extensions you can compare products from the Doctorbike catalogue. Start with your intended use and existing equipment, then check dimensions, variants and availability on each product page.

Valves and extensions: what to check before buying

• ETRTO size. Compare diameter and width with the tyre markings and the limits specified for the rim and frame.
• System and valve. Check whether you use inner tubes or tubeless tyres, and verify the valve type and length.
• Terrain and use. Assess the tread, tyre width and manufacturer’s recommendations for the routes you ride.

Unsure about compatibility?

Have the brand, model, year and, if available, the code of the fitted component ready. You can ask the Doctorbike team or contact our certified workshop to assess the work needed.