Ultralight and made of TPU: this inner tube weighs 22 grams
RTi Sports GmbH is launching an ultra-light bicycle inner tube on the market under the brand name "Aeron". The road version weighs just 22 grams. And: the inner tube is made of TPU instead of butyl.
Brand new brand with TPU instead of butyl at the start
This means that the lightweight road version weighs even a few grams less than the comparable product from Tubolito or other manufacturers, for example.
The processed layers of thermoplastic polyurethane are each 0.13 millimetres thin. According to Müller, the advantage of TPU is that this material can be used to create a hose from scratch. "This means that the engineers can give a bicycle inner tube the properties that the respective rider needs for the respective application." This means that the focus can be placed on speed or robustness, for example, depending on requirements.
Lightweight and yet puncture-proof
T TPU also performs better than butyl in terms of puncture resistance, continues Mathias Müller. "The inner tubes produced in Austria can be manufactured in multiple layers depending on the area of application, depending on the properties the engineers want to give them," says Müller. Those tubes that are used for city and touring bikes with the highest safety standard are practically non-flat.
According to Mathias Müller, the products shown at Eurobike are still prototypes. This also means that there may still be one or two adjustments before the product is ready for the market. We will test the tubes when they are launched on the market and then report on them in detail. The new tubes are expected to cost between 18 and 25 euros from January.
Our purchasing department will clarify whether and when we will have the product in our range.
From radio journalist to product tester and storyteller, jogger to gravel bike novice and fitness enthusiast with barbells and dumbbells. I'm excited to see where the journey'll take me next.
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