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EXTREME FAT TIRE BICYCLE

Step 8Locating the jack shaft

Locating the jack shaft
I had figured out that the jack shaft would be located up high, behind the sweep of my heel on the arc of the pedal motion.

I laid it out on cardboard based on the heel arc, the size of the freewheel cassette ( I opted for a Shimano 7 speed with the 34 tooth mega-range cog).
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