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@hippy
Surely the "leverage" is related to crank length and has nothing to do with chainring size?
"A 46x18 gear and a 36x14 are both about 69", but when used througout a range of pedal speeds they would feel quite different from one another."
I gotta try this!
"you might like 42t instead, but don`t go smaller for road use."
So what about the 39T that appears on almost every standard road chainset? Why is this ok?