Skip to content 跳到章节

🚲工作原理

自行车 · 人力驱动、效率最高的个人交通工具。

一眼看清
指标浓度

分数是本图鉴内的相对0–100分。用于浏览,不是工程规格。

速度相对本图鉴其他48种载具的实用最高速度。
35
效率有效行程的能耗——图鉴内的相对值。
98
易用性普通人在无特殊训练或财富时有多容易使用。
95
安全在正常运行与现行规制下,每次行程的安全程度。
50
文化影响这种载具对语言、地位与日常想象影响有多深。
90
技术变革当下新技术正在多大程度改写这种载具。
40

最近审阅 来源与署名媒体署名方法说明

简短问答

这类交通工具要看哪些本地机构或走廊规则?

先看本地视角中的型式认定、营运许可与枢纽——不要假定一份全球清单。

Is this a buying guide?

No. Tool-Lifes /vehicles is an educational atlas. It explains history, systems and culture without affiliate rankings.

Are the scores official?

No. The six scores are relative editorial 0–100 marks across the 48 types on this site.

Where do the photos come from?

Lead images resolve from Wikimedia Commons via Wikipedia titles on the English masters, with licences recorded on the credits page.

Why metric units?

Metric is the default. Regional notes (US customary, local brand culture) appear in culture and market chapters.

How is this different from a wiki article?

Each type gets seven fixed-depth chapters, comparable scores and cross-type labs — structured for browsing, not a single freeform page.

安全运行自行车需要按相同顺序追踪能量、信息与机械流。

CBTC、ERS等通用缩写保留,并在上下文中解释。

原理

就自行车而言,Cadence vs torque

就自行车而言,Riders trade pedal RPM for gear ratio to stay in efficient muscular range.

就自行车而言,Rolling resistance

就自行车而言,Tire pressure, casing suppleness, and tread pattern dominate slow-speed effort.

就自行车而言,Centripetal lean

就自行车而言,Rider+bike lean balances lateral tire force in curves without tripping over.

就自行车而言,制动 dive

就自行车而言,Front weight transfer increases front tire grip but can lift rear wheel if abrupt.

就自行车而言,Aero drag cube law

就自行车而言,Power rises sharply with speed on road bikes where drag exceeds rolling loss.

图解

就自行车而言,Pedal to rear wheel

就自行车而言,Human power flows through chain and derailleur ratios.

就自行车而言,制动 modulation

就自行车而言,Hand force becomes clamp force at the wheel.

运行步骤

01 就自行车而言,ABC quick check

就自行车而言,Air, 制动s, chain—spin wheels and test levers before clipping in or mounting.

02 就自行车而言,Mount & pedal

就自行车而言,Lead with dominant foot; scan for traffic before rolling into lane position.

03 就自行车而言,Shift & climb

就自行车而言,Anticipate hills with downshifts; stay seated or stand without cross-chaining.

04 就自行车而言,Signal & pass

就自行车而言,Hand signals and shoulder checks before lane changes; pass parked-door zones wide.

05 就自行车而言,制动 & trackstand

就自行车而言,Modulate both 制动s; use slight steer at lights to hold balance if skilled.

06 就自行车而言,Lock & store

就自行车而言,Secure frame and wheels to fixed object; lube chain after wet rides.

硬性极限

就自行车而言,Power assist limits

就自行车而言,E-bike variants face watt and speed caps where 电机 cut-off applies.

就自行车而言,Road rule parity

就自行车而言,Many jurisdictions treat bikes as vehicles with light and helmet requirements.

就自行车而言,Trail grade & width

就自行车而言,MTB trails post maximum slope and bidirectional yield rules.

Keep exploring

More in 公路