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I meant it in terms of gear ratios as Tijs says. Never heard of cog and chainring rolling resistance before now : )
With these 35c tyres I find it slightly hard to go up small hills, gain speed and maintain after I stop pedalling.
That is why I am looking to get smaller teeth chainring but since Tijs says it does not matter what is changed I will get the freewheel in 22t. The current chainring is 47t. The current freewheel is 18t
wqvm
@fizzy.bleach
Intuitively I'd say that wrapping the chain round a tighter curve (which is what you're doing with a smaller cog) would cause higher resistance but a) I could be wrong and b) the difference would be unnoticeable