Ch. 8 · Motorcycles

Chain slack is checked by pressing the middle of the chain with your finger.

[True / False · Easy]

Answer: ✓ True

Explanation

The inspection items in the Rules of the Road specify: "Is the chain too loose or too tight? (Check slack by pressing the middle of the chain with your finger.)" This describes the specific inspection method.

Driving school curriculumStage 1 – Topic 1: Driver's mindset

Momoka
Momoka
Wait, don't you need a tool to check chain slack properly?
Hikari
Hikari
Nope! You just press the middle of the chain with your finger — that's the official method in the Rules of the Road, so it's true.
Momoka
Momoka
Oh, so it's that simple? Just a finger press?
Hikari
Hikari
Exactly. Quick finger check in the middle tells you if it's too loose or too tight.

Source: Ch. 8 Motorcycles · Section (第１節 二輪車の運転者の心得) · チェーンが緩み過ぎていたり、張り過ぎていたりしないか(緩みは、チェーンの中央部を指で押してみて調べる。)

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Source content excerpted from the NPA “Rules of the Road” instructional manual, in the public domain under Japanese Copyright Act Article 13(2). Explanations are AI-assisted and copyrighted by the MenkyoQuest editorial team.