It looks like you can remove it by unscrewing the small cog (with 2 chain whips)
So like the left one here: https://www.sheldonbrown.com/k7.html
@svenhöek started
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It looks like you can remove it by unscrewing the small cog (with 2 chain whips)
So like the left one here:
https://www.sheldonbrown.com/k7.html