Coda (Cannondale) Freehub Question??

<[email hidden]> a écrit:

Quoted message said:

Can anyone give me some advise on how to remove a Coda
"Performance" freehub body?

Quoted message said:

This is what came with my wife's "Silk Path".

Quoted message said:

It appears to have some sort of attaching bolt that's accessed
from the left side? But I'm not sure if this is an "allen" bolt or
some proprietary splined pattern. Also I'm not sure if it's right
or left hand thread.

The last Coda freehub body I removed needed a 12mm allen key inserted from
the left. The bolt had the form of a twelve pointed star, six of which
engaged with the allen key. The thread was right-handed.

A number of different designs are used in Coda hubs, and yours may be
different.

James Thomson

James Thomson said:

The last Coda freehub body I removed needed a 12mm allen key inserted from
the left. The bolt had the form of a twelve pointed star, six of which
engaged with the allen key. The thread was right-handed.

A number of different designs are used in Coda hubs, and yours may be
different.

Yes! This makes perfect sense. The bolt does indeed have the star
pattern you refer to.

Thanks so much James.
(Now all I have to do is find a 12mm allen key.)

John

Quoted message said:

James Thomson said:

The last Coda freehub body I removed needed a 12mm allen key inserted from
the left. The bolt had the form of a twelve pointed star, six of which
engaged with the allen key. The thread was right-handed.

A number of different designs are used in Coda hubs, and yours may be
different.

Yes! This makes perfect sense. The bolt does indeed have the star
pattern you refer to.

Thanks so much James.
(Now all I have to do is find a 12mm allen key.)

John

grab a cheap set of large metric allen sockets at any auto supply
joint, like Autozone. Five bucks, tops.

Nashbar's got a replacement freehub on sale for $20, I think there's a
good chance it'll fit if ya want a new mech: http://tinyurl.com/h27hw

"landotter" <[email hidden]> a écrit:

Quoted message said:

Nashbar's got a replacement freehub on sale for $20, I think there's a
good chance it'll fit if ya want a new mech: http://tinyurl.com/h27hw

If John's got the hub I described, a Shimano body won't fit. The Coda hub
has a 12mm allen bolt entering the threaded, male-splined freehub body from
the hub side, something like this:

http://www.cannondale.com/bikes/tech/kitlist/CO.1.2.Coda%20800%20Rear%20hub.pdf

The Shimano hub has a 10mm bolt entering the threaded, male-splined hub from
the freehub body side.

James Thomson

James Thomson said:

"landotter" <[email hidden]> a écrit:

Quoted message said:

Nashbar's got a replacement freehub on sale for $20, I think there's a
good chance it'll fit if ya want a new mech: http://tinyurl.com/h27hw

If John's got the hub I described, a Shimano body won't fit. The Coda hub
has a 12mm allen bolt entering the threaded, male-splined freehub body from
the hub side, something like this:

http://www.cannondale.com/bikes/tech/kitlist/CO.1.2.Coda%20800%20Rear%20hub.pdf

The Shimano hub has a 10mm bolt entering the threaded, male-splined hub from
the freehub body side.

James Thomson

D'oh!

Is it a Shimano patent issue? Life would be so much nicer if parts
interchanged better. Ugh. I'm just old enough to remember running those
cool Suntour thumbies with my Shimano kit. Everything just got along. :P

"landotter" <[email hidden]> a écrit:

Quoted message said:

Is it a Shimano patent issue?

Yes: Shimano's patent specifies that the hub shell is threaded, and that the
fixing bolt should pass through the freehub body into the threaded part of
the hub shell. SunTour subsequently arranged things in reverse to evade
Shimano's patent, and the Coda hub is of the SunTour patern.

http://tinyurl.com/ghxzo

United States Patent 4,580,670
Nagano April 8, 1986

Hub for a bicycle

Abstract

A hub for a bicycle wherein a tubular support, having at its outer
peripheral surface a non-circular cross-section, is provided at a hub shell
which is supported rotatably to a hub shaft, a driven cylinder of a
freewheel is fitted and fixed to the tubular support. The hub shell is
provided with an elongate inner screw-threaded portion. A screw-threaded
cylinder is provided which is adapted to have at one end an outer
screw-threaded portion screwable with the inner screw-threaded portion and
to have at its other end a projection which is engageable with one end of
the driven cylinder, so that the screw-threaded cylinder is screwed with the
hub shell to fix the driven cylinder to the hub shell.

Inventors: Nagano; Masashi (Izumi, JP)
Assignee: Shimano Industrial Company Limited (Osaka, JP)

Appl. No.: 06/563,773
Filed: December 21, 1983

James Thomson