Why are low gears important for folding bikes?
为什么低速档对折叠车如此重要？
Available from: Bike Warehouse and Folding Bikes West.
可从：自行车仓库和折叠自行车西。
Second, it is in the field of folding bikes that we are seeing the most interesting inventions.
第二，正是在折叠自行车领域，我们看到了最有趣的发明。
Folding bikes work well for commuters who ride the train. Just fold the bike and take it with you.
但你也不必老是全程骑车，对于上班一族来说，骑乘折叠式的自行车比乘坐火车更蛮好，你可以随身携带。
Computer simulations that take all of these factors into account could lead to improved designs for folding bikes with small wheels or bikes that carry cargo, Ruina says.
计算机模拟能把这些因素进行综合考量。这能改进设计出可折叠或是能拉货的自行车。
Electricity-driven folding bikes have also been launched by some manufacturers and if you are one of those reluctant bicycle-riders, you can simply whiz around on them.
电力驱动的折叠自行车也有一些厂商推出了，如果你是一个对那些不愿自行车车手，你可以简单地呼啸他们周围。
Electricity-driven folding bikes have also been launched by some manufacturers and if you are one of those reluctant bicycle-riders, you can simply whiz around on them.
电力驱动的折叠自行车也有一些厂商推出了，如果你是一个对那些不愿自行车车手，你可以简单地呼啸他们周围。
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