It says this will extend the tyre's lifetime without affecting its rolling resistance or sacrificing its grip.
据称，其可以在不影响滚动阻力和牺牲抓地力的情况下延长轮胎的使用寿命。
When he took the other foot off the ladder, however, it met no resistance at all-only his tight grip on the ladder-rung kept him from toppling off balance.
他又把另一只脚从梯子上移来，然而，这只脚根本没有碰到什么阻碍——仅靠他紧抓住梯子的横档，使他没有失去平衡。
Low-rolling resistance tires offer very little grip in wet conditions.
低滚动阻力轮胎提供很少在潮湿环境中的抓地力。
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