6 speed Hyperglide cassettes were (and perhaps still are) produced. I have an 11-24 one which I got
from St. John Street Cycles in Bridgwater, England. They still offer this cassette at
(
http://www.sjscycles.com) for 16.99 GBP (about $25 US). Whether they were offered in other cog
combinations I don't know.
As another poster has pointed out you can just turn Uniglide cogs over and the unused side of the
teeth gives you the equivalent of a new cog. This works for every cog except for the threaded first
one. Even for this first one you have some alternatives:
1. A 7 speed cog will work on a 6 speed cluster even with indexing since the derailleur is stopped
by the limit screw. Thus if you can find only a 7 speed first cog you're still OK.
2. If your outer cog is a 13 you can use turn it over to use the unused side of the teeth by
getting an extra cog spacer (either 6 speed or 7 speed will do) and put it under the (turned
over) outer cog to replace the built-in spacer which will now be on the wrong side. I don't know
whether this will work with a 12 tooth outer cog or not.
Bob Taylor
[email protected] (Jeff Wills) wrote in message
news:<
[email protected]>...
>
[email protected] (Paul Southworth) wrote in message
> news:<BA2Ea.35764$A%
[email protected]>...
> > Nashbar is selling some 6s ATB cassettes for $12.95.
> >
> >
http://www.nashbar.com/profile.cfm?sku=6212
> >
> > Unfortunately it looks like it has a lockring and may be Hyperglide splined. If true then you'd
> > need to reuse your threaded small cog and grind the fat hyperglide splines off the inside of the
> > cluster.
> >
> > --Paul
>
> Hyperglide was never available in 6-speed cassette (freewheel, maybe- Sheldon?). It was introduced
> as 7-speed equipment, IIRC.
>
> OP: Loose Screws is apparently still around and lists 6-speed cassettes:
http://www.loosescrews.c-
> om/index.cgi?c=Cassette&sc=Complete%20Shimano&tc=6%20Speed&id=714799916279
>
> Jeff