Hubs: These days all bicycle hubs from major manufactures provide a stress-free spoke foundation.

航空枢纽港：这些天从所有主要枢纽自行车制造商提供了一个无压力的发言的基础。

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Like the minimalist theft-proof bicycle by Chris Boardman, the Nulla has no hubs or chain drive for perhaps the sleekest, most futuristic look yet.

就像Boardman的最简防偷自行车，这辆车也没有拉幅和传动链，这也是它看起来超现代的原因。

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In Europe, metropolitan hubs like Amsterdam, Copenhagen, and Barcelona tout expansive networks of bike lanes, bicycle theft prevention programs and even public rental services.

FORBES: The Greener, Cheaper Way To Commute