Fixed Freewheel Clusters

meb wrote:
<snip>

Quoted message said:

Were there some cogsets that 1) are completely fixed; or 2)
do the sprocket sets need more torque than fingers can provide

1) yup
2) nope

Quoted message said:

The spline pattern does not match the FR-1 pattern. Any idea which
tool mates to these splines?

FR-4.

-Vee

meb said:

I picked up a Shimano Fixed Freewheel sprocket set and Shimano-Schwinn
Fixed Freewheel crankset.

I was under the impression that there was a stiff rotation available to
accomodate snagged chains rather than a complete fixed relationship at
the cogset. Attempts to rotate the sprocket set on the splines are
fruitless. Were there some cogsets that 1) are completely fixed; or 2)
do the sprocket sets need more torque than fingers can provide; or 3)
have I got a set that has frozen unduly?

There was once a Shimano system that had a fixed, non-freewheeling rear
cluster and a non-fixed, freewheeling front chainring cluster. This
allowed you to shift while coasting. You may have the rear part of that --
the front bit ought to be clearly recognisable.

Jasper

A shy person said:

I picked up a Shimano Fixed Freewheel sprocket set and Shimano-Schwinn
Fixed Freewheel crankset.

That's "Front Freewheel" not "Fixed Freewheel."

See: http://sheldonbrown.com/shimano1982/pages/35.html

Quoted message said:

I was under the impression that there was a stiff rotation available to
accomodate snagged chains rather than a complete fixed relationship at
the cogset.

That's correct.

Quoted message said:

Attempts to rotate the sprocket set on the splines are
fruitless. Were there some cogsets that 1) are completely fixed;

No.

Quoted message said:

or 2) do the sprocket sets need more torque than fingers can provide;

Yes. Actually, each sprocket "freewheels" independently of the others,
but it does take some torque to make it turn. Try it with a chain whip.

Quoted message said:

The spline pattern does not match the FR-1 pattern. Any idea which
tool mates to these splines?

Yes, see: http://harriscyclery.net/site/itemdetails.cfm?ID=569

Another poster suggested the Park FR-4, but that will definitely _not_ fit.

Sheldon "FFS" Brown
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Sheldon Brown said:

Quoted message said:

The spline pattern does not match the FR-1 pattern. Any idea which
tool mates to these splines?

Yes, see: http://harriscyclery.net/site/itemdetails.cfm?ID=569

Another poster suggested the Park FR-4, but that will definitely _not_ fit.

Ditto. I'm pretty sure the Shimano FFS "freewheels" used the smaller
splines that required removal of the axle spacer to use the tool. The
Bicycle Research BR-CT4 tool should work, also:
http://www.biketoolsetc.com/index.cgi?i&d=single&item_id=BR-CT4

Jeff