Assuming you're on 25c tyres (or similar) get yourself a 44t chainring and a 17t cog.
Then you can run a cog on each side and have 73" (summer) and 68" (winter).
@miro_o started
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Assuming you're on 25c tyres (or similar) get yourself a 44t chainring and a 17t cog.
Then you can run a cog on each side and have 73" (summer) and 68" (winter).