As it's a single speed with no derailleur and the missing braces would be in ten... | Hacker News

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		dTal on July 15, 2019 \| parent \| context \| favorite \| on: Why did we wait so long for the bicycle? As it's a single speed with no derailleur and the missing braces would be in tension, might not the chain itself fulfill the role?

thisisbrians on July 15, 2019 [–]

It could, but undue tension on the chain vastly decreases the efficiency and longevity of the chain, and potentially, the cog/chainwheel. This would also present a safety issue because chains can (and do) break.

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