Maillard hub

Gene Domenici

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Jul 1, 2001, 2:56:59 PM7/1/01

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Hello,

I need to try to re-build a Maillard hub, which was manufactured circa 1986.
Does anyone know a source for technical information about this hub?

Thank you.

Gene Domenici

A Muzi

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Jul 1, 2001, 10:47:12 PM7/1/01

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M.M.Atom / Mailllard / Normandy was the venerable supplier to most everyone's
mid priced bikes (Schwinn, Motobecane. Peugeot, Trek, etc) for years. They
became the standard for hubs because they were so incredibly ubiquitous.
Standard models use ten 3/16" balls on each side in the front with 13mm cone
wrench and the rears have 1/4" 9x9 with a 15mm wrench.

In many models, Shimano ans Suzue axle sets interchange. Some KK and JoYou axle
sets, while not as nice, will fit. Measure the diamteter at which the balls hit
the cone and the outer diameter of the come for dustcap fit,

More expensive models (Competition, 700, 700Course, also used by Roval) have
finer threads than the m9x1.0 and m10x1.0 standard models. Fronts of those
series used a highly unorthodox broad cone face that's nearly impossible to
interchange. Early Competition (noted by red or gold foil label rather than a
stamped ID) have a dust cap of plain aluminum pressed in and polished to look as
if the hubshell and cap are one piece. These are a bitch to reinstall.

Later models of all quality ranges use a labyrinth steel dustcap system with one
part in the shell and one on the cone. Those cone seals may be pressed off and
moved to the new cone easliy.

Lastly, the Helicomatic rear hub system ( a marvel of clear thinking) used the
same cones and axles as the freewheel models in the lower quality range, Omit
the spacer between the right cone and locknut to make a freewheel axle set into
a Helicomatic axle set. Top quality Helicomatics use a smaller bearing,
essentially a front cone with a 10mm hole in it. Hard to find.

I think that covers it. Anything else I omitted?

Gene Domenici wrote:

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Yellow Jersey, Ltd
http://www.yellowjersey.org
Open every day since 1 April, 1971

Phil Brown

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Jul 2, 2001, 12:24:12 PM7/2/01

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<< More expensive models (Competition, 700, 700Course, also used by Roval) have
finer threads than the m9x1.0 and m10x1.0 standard models. Fronts of those
series used a highly unorthodox broad cone face that's nearly impossible to
interchange >>

My 700s use current standard 9x1 and 10x1 axles.
Phil Brown

Gene Domenici

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Jul 2, 2001, 6:40:45 PM7/2/01

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Thank you both for taking the time to post. Just what I needed to know.

Gene

Ned Mantei

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Jul 6, 2001, 6:30:08 AM7/6/01

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In article <3b3fe108$0$42881$272e...@news.execpc.com>,
am...@yellowjersey.org wrote:

> Top quality Helicomatics use a smaller bearing,
>essentially a front cone with a 10mm hole in it. Hard to find.

I thought that the Helicomatic hub, at least the model that came with my
1986 Trek 520, used 5/32" bearings in the rear (small in order to fit
beneath a small cog). Memory dims with the passing of the years,
however...

--
Ned Mantei
Department of Cell Biology, Swiss Federal Institute of Technology
CH-8093 Zurich, Switzerland