runner wheel

例句：

1. 1.The runner wheel on the bicycle is very smooth.
   自行车上的跑步轮非常光滑。
2. 2.The new runner wheel design makes cycling more comfortable.
   新的跑步轮设计使骑行更加舒适。
3. 3.The runner wheel was designed to improve efficiency in transportation.
   跑步轮被设计来提高运输效率。