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TKART magazine Tech Focus | The secrets of the NEK Z2 Modulate seat
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08 January 2018
When it was unveiled, the NEK Z2 Modulate seat created something of a stir and a little scepticism, mainly due to its fiberglass-based carbon inserts. However, over time it began to draw recognition and…users, such as the DR team of the 5 times World Champion Danilo Rossi, for example. Let's find out the details.
If, in the past, the seat was a rather underrated component of a kart, nowadays things are very different and this accessory has become essential for driving comfort, safety and performance. As a result, there are a greater number of studies dedicated to seats and the models available on the market. In terms of materials, for example, over the years there has been a shift from traditional fibreglass towards carbon fibre. Now, NEK has decided to use both fibres, unveiling a solution that combines general flexibility with notable rigidity at certain strategic points.

The base material for NEK’s best-selling seat, the Modulate, is the 500 gramme per square metre fibreglass composite. Obviously, the layers change depending on the hardness, which ranges from Standard, the most flexible, to Hard (HD) to Hard + (HD+). The latter, in particular, features a special solution with rope running along the entire edge of the seat. Twill 3K carbon fibre inserts are added to the fibreglass base, as if to form a single component. They have two basic functions: to control the torsion by stiffening the seat only where it counts, for better performance, and to strengthen the areas under the greatest stress, such as the back (often perforated to mount the support attachments for the engine cooling water pipes) or the sides at rib height (perforated for the attachment of the seat support brackets).
Carbon fibre inserts
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Carbon fibre inserts
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