Originally posted by jedi
Does the 64 pitch gears really have an advantage over the 48 pitch gears aside from being able to fine tune the ratios better?
re Fine tuning...
Let's assume all pinions and spurs are the same equal price each.
For a decent range say, 10x 64dp pinions and 1 spurgear.
Or you could buy 8x 48dp pinions and 3 spurs (eg 68, 70, 72) that are close together.
Do the sums and there's no change in "flexibility". Change 1 tooth on 64dp, same as change 1 pinion and change the spur on 48dp.
Same cost, and the latter would give you "spare" spurgear too.