Wider rims stretches soft compound tyres, making it lower, wider and firmer.

软胎宽轮胎钢圈延伸，使其较低，更广泛和更牢靠。

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To add to the challenge organisers have added sections of Tarmac to the competitive route for this year, which drivers will tackle using soft-compound gravel tyres.

为了增加挑战性，组织者还特别增加了一些柏油路段来增加今年比赛的竞争性，而车手能够使用的只有软胎。

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