Originally Posted by
cbender
That may all be true, but will the IRD index correctly with Accushift? I was under the impression that they wouldn't, due to Suntour's irregular spacing change in the bottom two cogs.
Suntour Accushift and normal 6-speed freewheels are both 5.5mm spacing, which is the same as normal 5-speed freewheel spacing (which shouldn't matter to anyone since that's usually friction anyway).
I only make the 5-speed point in case someone needs a bargain freewheel for use with a Suntour Accushift setup. You can use a 5-speed freewheel and lose a cog, but has the same spacing as 6. Maybe somebody finds a swap bargain on a 5 sp freewheel that is so cheap they'll forgo a cog.
Sheldon Brown's Bicycle Frame and Cassette Spacing Crib Sheet