Just an example...
My Super Sport with 630-32 tires has a 5x14-32 freewheel and 40-52 rings for a range of six ratios from 34" to 102". The ring shift isn't quite matched to the freewheel steps.
A hypothetical 1x8 road bike with 622-28 tires has an 11-32 cassette and a single 42t ring for a range of eight ratios from 35" to 102". You have a choice between a Shimano cassette with even shifts or a SRAM cassette with tight-high and wide-low shift spacing.
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Genesis 49:16-17
"Well, well!" said Holmes, impatiently. "A good cyclist does not need a high road. The moor is intersected with paths and the moon is at the full."
Last edited by Darth Lefty; 09-24-14 at 05:30 PM.