Time Trial / Time Trialling / TT

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Scilly.Suffolk in reply to @specialist

Chain derailment is mainly a lateral problem.

The chain has to move up, before it can move off (to the side).

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gbj_tester in reply to @Scilly.Suffolk

The chain has to move up, before it can move off (to the side).

And it has to move sideways first to be lifted up by the chainring teeth

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Scilly.Suffolk in reply to @gbj_tester

I was talking about "chainslap" though (on the subject of single-ringers losing their chain).

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