Originally Posted by
tugrul
According to
Sheldon, the "regular" 6 speed should be 5.3mm and the Accushift should be 5.5mm.
Assuming the derailleur is lined up on the small cog, it should be over-shifting an additional 0.2mm each shift, times 5 shifts or over by 1.0mm on the large cog.
Maybe this is improving down shifting
No, it's not improving down shifting, it shifts perfect. All I can say is that it shifts perfectly with either the original Suntour or the Shimano Freewheel.