How bicycle tyres are producedWe bake a tyre

Peter Nilges

 · 23.07.2025

How bicycle tyres are produced: We bake a tyrePhoto: Nils Laengner
Under pressure and heat, the heating press completes the work.
How is a bicycle tyre made? We investigated this question at the S-Works tyre factory in Lage near Bielefeld. Road, gravel and mountain bike tyres are produced there. And this is what it looks like.

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Bike manufacturer Specialized not only has bikes with and without motors in its range, but also a range of components, accessories and clothing that has grown over decades. Incidentally, one of the first products in the Specialized range was a tyre. The Specialized Touring tyre was launched back in 1976. What many people don't know: The development of Specialized tyres has been taking place in Germany for ten years. In order to not only develop but also produce tyres in Germany in the future, Specialized has opened its own tyre factory in Lage near Bielefeld. BIKE has already been able to visit the new S-Works tyre factory. Specialized is thus taking research and race team support to a whole new level.


More on the subject of tyres:


1. what is a bicycle tyre made of?

A tyre consists of many ingredients. The lion's share is made up of rubber. There are also fillers such as carbon black or silica. They also contain plasticisers, oils, vulcanising agents/accelerators and dyes.
Photo: Nils Laengner

2. from the ingredients to the rubber compound

The pre-selected ingredients are carefully put together.
Photo: Nils Laengner

3. the compound is brought into shape

In the next step, the still plastic rubber compound is rolled flat.
Photo: Nils Laengner

4. everything comes together

The carcass is cut into strips on the cutting table. Typically at an angle of 45 - 50 degrees. The angle is higher for radial tyres.
Photo: Nils Laengner
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5. into the oven

High pressures and high temperatures prevail in the heating press. The tyre moulds are therefore made of solid steel.
Photo: Nils Laengner

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