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@LongAndWinding
I wonder if you lovely chaps might be able to give me a hand with some calcs ...
With my current set up, according to Sheldon Brown, I am running with 68.3 Gear Inches.
Tech details: 700x25; 165 cranks; 44 tooth chainring; 17 tooth sprocket.
My new set up will have the following: 650x23 or 650x25; 165 cranks; Gates belt drive TBA. Note the smaller wheels.
I have been given some belt drive options, but can't quite make sense of the Gates Calculator at the moment. It looks like I need to keep to a chainstay of around 390/395 (according to bike builder).
What configuration of sprockets can I use to try and keep as close to 68 GI?