I have a singlespeed with a flipflop hub to change to fixed gear. In my freewheel sprocket I have 16 teeth and in the ring chain 46 teeth.
For me this is almost always the perfect combination for touring where I live.
But sometimes I want to go up a mountain (15-17% ) and I,m not strong enough to keep pedaling. I,d like to have the fixie side as backup for those occasions with more teeth.
I don't have any local shop to try gear ratios so I have t guess and buy.
Is there any method to guess how many more teeth do I need considering what I already have? I can go around 15km/h in a 7%hill.