+ the new ones use the press fit of the axle in the Bearings.
You can shift the axle sideways within the Bearing Cartridge.


BTW chain Line is lining up with the middle cog on the rear cluster

3 of 5, 5 of 9 etc, or the space between the 2 centre cogs with even numbers .

with the middle chainring of one or 3 or the space Between 2



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