>>1472240triple has better chain line
front chain rings are for big jumps / wide range
the rear can sort the small increments
corncob is more important on the small cogs .eg 10 or 17
above that size the torque required for a given cadence is not a big deal, the middle cogs and the largest three cogs can have bigger tooth jumps 2 4 6 8 10 are typical
chain thickness
6, 7, and 8 rear cogs — 7 mm
9 rear cogs — 6.5 to 7 mm
10 rear cogs — 6 mm
11 rear cogs — 5.5 mm
12 rear cogs — 5.3 mm
have a wild guess as to what is going to be more durable and much easier to adjust
now if you really wanted a bail out gear for climbing hills
Cycloidal drive on crank set
dog clutch
belt drive because chains suck
Epicyclic gearing because reasons