Regarding the 4 to 5 speed conversion that was talked of fairly recently - you can also take the opportunity to remove a cable from your bike:
Is that a custom cable puller box thing? Got a link?
https://archercomponents.com
@Jackytwoshoes started
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Regarding the 4 to 5 speed conversion that was talked of fairly recently - you can also take the opportunity to remove a cable from your bike: