Brompton owners

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sbbohr in reply to @Beams

Most normally drop to 50t as thats what Brompton offer, thought about making it a 3 speed with external sprockets?

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Beams in reply to @sbbohr

I’d probs prefer to just swap the chainring I think, as looking to minimise cost. Would an extra sprocket fit without any modifications? And presume I’d need a new chain?

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sbbohr in reply to @Beams

Drop the chainring, lose 2 links, same
Chain.

You can fit an extra sprocket if you use a narrower circlip, still need the shifter to work for 3 etc

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