Mavic Road Rear Derailleur
Dave Mayer
spare parts. Vintage I would guess to be late 80's. Headsets, freewheel
hubs, and derailleurs. Help would be appreciated:
Does the Mavic 840 rear derailleur index well with Shimano 7-speed stuff?
I've read in Usenet that it works - but I've also got a new Ultegra unit,
and is there really any point in installing the Mavic if the shifting simply
isn't as good? And how do I route the cable? Through or over the little
plastic thingy? Looking through Usenet, I've seen both as the correct
answer.
The matching front derailleurs are braze-on units that I have not seen
before. It does not fit a standard braze-on. Did Mavic produce a clamp
fort these to fit a standard steel frame?
Thanks!
Qui si parla Campagnolo
and
spare parts. Vintage I would guess to be late 80's.
<< Does the Mavic 840 rear derailleur index well with Shimano 7-speed stuff?
Not up on my Mavic numbers but this is the non-slant parallogram rder?(late
80s?)-if so-not index compatible at all. If the newer slant parallogram
rder-yes, shimano compatible with evrything but DA 8s shifters.
<< And how do I route the cable? Through or over the little
plastic thingy?
That thing was always a mystery, try over it.-
<< The matching front derailleurs are braze-on units that I have not seen
before. It does not fit a standard braze-on. Did Mavic produce a clamp
fort these to fit a standard steel frame?
Should have a concave plate and bolt like a lot of braze-on fders.
Peter Chisholm
Vecchio's Bicicletteria
1833 Pearl St.
Boulder, CO, 80302
(303)440-3535
http://www.vecchios.com
"Ruote convenzionali costruite eccezionalmente bene"
Waal
"Qui si parla Campagnolo" <vecc...@aol.com> skrev i en meddelelse
news:20030119093737...@mb-fp.aol.com...
> dave-<< I have stumbled across a lifetime supply of NOS Mavic road
components
> and
> spare parts. Vintage I would guess to be late 80's.
>
>
> << Does the Mavic 840 rear derailleur index well with Shimano 7-speed
stuff?
>
> Not up on my Mavic numbers but this is the non-slant parallogram
rder?(late
> 80s?)-if so-not index compatible at all. If the newer slant parallogram
> rder-yes, shimano compatible with evrything but DA 8s shifters.
>
> << And how do I route the cable? Through or over the little
> plastic thingy?
>
> That thing was always a mystery, try over it.-
>
> << The matching front derailleurs are braze-on units that I have not seen
> before. It does not fit a standard braze-on. Did Mavic produce a clamp
> fort these to fit a standard steel frame?
>
> Should have a concave plate and bolt like a lot of braze-on fders.
Not if it's the Simplex-type body.
There were 3 diff. front versions
Braze-on, simplex-type
Braze-on, normal standard
Clip-on, 28mm (french)
Michael
A Muzi
news:dDtW9.66835$Yo4.4...@news1.calgary.shaw.ca...
Don't think they did, but the currrent Sachs/SRAM clip is available at any
LBS for $15 in 28.6, 31.8 and 34.8mm. It's a nice plain piece of polished
alimunum that won't clash with your Mavic aesthetic.
--
Andrew Muzi
http://www.yellowjersey.org
Open every day since 1 April 1971
Dave Mayer
tube via a bolt that is oriented 90 degrees from any other braze-on that I
have seen. The mounting bolt would be oriented so that it screws on to the
side of the seat tube.
John Dacey
wrote:
>Does the Mavic 840 rear derailleur index well with Shimano 7-speed stuff?
The 840 series derailleur indexes with Mavic's own 821 shift levers
with Shimano six or seven speed freewheels and cassettes (and other
rear clusters with Shimano-compatible spacing). The derailleur is
frequently acceptable with Ultegra or 105 series levers as well.
>I've read in Usenet that it works - but I've also got a new Ultegra unit,
>and is there really any point in installing the Mavic if the shifting simply
>isn't as good? And how do I route the cable? Through or over the little
>plastic thingy? Looking through Usenet, I've seen both as the correct
>answer.
For seven-speed operation, the cable goes through the plastic thingy.
It goes around it for more cable pull for six-speed use.
>
>The matching front derailleurs are braze-on units that I have not seen
>before. It does not fit a standard braze-on. Did Mavic produce a clamp
>fort these to fit a standard steel frame?
As someone else noted, these are probably for the French "Simplex"
style frame braze-on (Mavic reference 811). You could switch the
derailleur parts onto a Mavic clamp-on fitting (Mavic reference 810)
or onto the bracket for the more common Italian style brazed on
fitting (Mavic reference 812), but good luck finding either of them.
- - - - - - - - - - - - - - -
http://www.businesscycles.com
John Dacey
Business Cycles
Miami, Florida
- - - - - - - - - - - - - - -
Now in our twentieth year.
Our catalogue of track equipment: seventh year online
Paul Southworth
Dave Mayer <dave...@hotmail.com> wrote:
>I have stumbled across a lifetime supply of NOS Mavic road components and
>spare parts. Vintage I would guess to be late 80's. Headsets, freewheel
>hubs, and derailleurs. Help would be appreciated:
>
>Does the Mavic 840 rear derailleur index well with Shimano 7-speed stuff?
>I've read in Usenet that it works - but I've also got a new Ultegra unit,
>and is there really any point in installing the Mavic if the shifting simply
>isn't as good?
It's so retro-Euro-cool you just have to try. All other arguments
don't matter. :-)
--Paul
A Muzi
> seen
> > > before. It does not fit a standard braze-on. Did Mavic produce a
clamp
> > > fort these to fit a standard steel frame?
> > >
> > > Should have a concave plate and bolt like a lot of braze-on fders.
> >
> > Not if it's the Simplex-type body.
> > There were 3 diff. front versions
> >
> > Braze-on, simplex-type
> > Braze-on, normal standard
> > Clip-on, 28mm (french)
"Dave Mayer" <dave...@hotmail.com> wrote in message
news:ttCW9.72178$H7.34...@news2.calgary.shaw.ca...
> The Mavic front derailleurs I've found mount to something (?) on the seat
> tube via a bolt that is oriented 90 degrees from any other braze-on that I
> have seen. The mounting bolt would be oriented so that it screws on to
the
> side of the seat tube.
That's a Simplex braze-on mount. It takes a 5mm water-bottle boss in the
plane of the BB spindle. Difficult/impossible to arrange a clamp for that
model but a RivNut works just fine. Other Mavic models used the
Campagnolo-style braze-on mount.
Here are the two styles, for those unfamiliar with the Simplex type.
Waal
"Dave Mayer" <dave...@hotmail.com> skrev i en meddelelse
news:ttCW9.72178$H7.34...@news2.calgary.shaw.ca...
> The Mavic front derailleurs I've found mount to something (?) on the seat
> tube via a bolt that is oriented 90 degrees from any other braze-on that I
> have seen. The mounting bolt would be oriented so that it screws on to
the
> side of the seat tube.
Simplex-type braze-on. It is for french tubing (28mm)
Michael
John Dacey
(Paul Southworth) wrote:
>>Does the Mavic 840 rear derailleur index well with Shimano 7-speed stuff?
>>I've read in Usenet that it works - but I've also got a new Ultegra unit,
>>and is there really any point in installing the Mavic if the shifting simply
>>isn't as good?
>
>It's so retro-Euro-cool you just have to try. All other arguments
>don't matter. :-)
I'll not dispute the cool factor, but from a strict performance
standpoint the Ultegra option deserves respect. Mavic's derailleur
guide pulley had no lateral float and keeping the chain centered under
each sprocket relied in part on adjusting the amount of jiggle in the
detents of the right 821shifter. As a system, the floating guide
pulley (Shimano, and subsequently adopted by others) is less fussy to
set up. If you're going to going to indulge in "retro-Euro-cool", it
might be even better to pair the derailleur with the Simplex/Mavic
retrofriction levers.
-----
http://www.businesscycles.com
Business Cycles
Miami, Florida
-----
Now in our twentieth year.
Our catalog of track equipment: seventh year online
A Muzi
A Muzi
> news:ttCW9.72178$H7.34...@news2.calgary.shaw.ca...
> > The Mavic front derailleurs I've found mount to something (?) on the
seat
> > tube via a bolt that is oriented 90 degrees from any other braze-on that
I
> > have seen. The mounting bolt would be oriented so that it screws on to
> the
> > side of the seat tube.
not
> > seen
> > > > before. It does not fit a standard braze-on. Did Mavic produce a
> clamp
> > > > fort these to fit a standard steel frame?
> > > >
> > > > Should have a concave plate and bolt like a lot of braze-on fders.
> > >
> > > Not if it's the Simplex-type body.
> > > There were 3 diff. front versions
> > >
> > > Braze-on, simplex-type
> > > Braze-on, normal standard
> > > Clip-on, 28mm (french)
"Waal" <wa...@post.tele.dk> wrote in message
news:3e2b2332$0$190$edfa...@dread14.news.tele.dk...
> Simplex-type braze-on. It is for french tubing (28mm)
Many of those front changers came with a black rectangular nylon pad that
fit between the changer and the seat tube to accomodate either 28.0 or 28.6
with the same derailleur.
Terry Rudd
Dave Mayer wrote:
> I have stumbled across a lifetime supply of NOS Mavic road components and
> spare parts. Vintage I would guess to be late 80's. Headsets, freewheel
> hubs, and derailleurs. Help would be appreciated:
What a nice find! These are cool parts.
>
> Does the Mavic 840 rear derailleur index well with Shimano 7-speed stuff?
The Mavic technical reference for the 840 claims it will work with
"evenly spaced six, seven and eight speed freewheels. I find it all
works pretty well set up for 8 speed Shimano spacing. While I have
heard folks come up with lots of different anecdotal ways of arranging
the cable and plastic cable guide to shift clamp to shift other spacing,
I have only had success shifting 8 speed Shimano gears and using the
guide said toward the crankset. That said, I have only tried with the
821 indexed shifters and Sachs Ergo shifters.
> I've read in Usenet that it works - but I've also got a new Ultegra unit,
> and is there really any point in installing the Mavic if the shifting simply
> isn't as good?
The Mavic 840 had durability the Ultegra will never achieve. The
Ultegra will shift more crisply than the 840 and weighs a great deal
less than the 840. If you are using STI, especially 9 speed, don't
bother with the Mavic. If you are using 8 speed and like the cool look
of the Mavic (and don't mind the enormous weight), go for it!
And how do I route the cable? Through or over the little
> plastic thingy? Looking through Usenet, I've seen both as the correct
> answer.
According to the manual, if you are shifting 7 or 8 speed, turn the
pivot down and pass the cable around the outside of the pivot.
I've tried both down and flat against the parallelogram extensively. If
you are using 8 speed indexing, with Mavic shifters, simply leave the
plastic guide resting against the parallelogram, routing the cable
around the underside of it and then up to the cable clamp. I find the
shifting flawless, despite what my manual says.
>
> The matching front derailleurs are braze-on units that I have not seen
> before. It does not fit a standard braze-on. Did Mavic produce a clamp
> fort these to fit a standard steel frame?
You may have the 872 triple for braze-on. I can find no record of more
than one double braze-on, the 870 which I have used with normal frame
braze-ons. I have also used this front derailleur with Shimano
adapters, with no fit problems- same as a Shimano front.
>
> Thanks!
>
Hope this helps.
Terry
>
>
Terry Rudd
Dave Mayer wrote:
> I have stumbled across a lifetime supply of NOS Mavic road components and
> spare parts. Vintage I would guess to be late 80's. Headsets, freewheel
> hubs, and derailleurs. Help would be appreciated:
What a nice find! These are cool parts. I have a Schwinn Paramount set
up with most of this group.
>
> Does the Mavic 840 rear derailleur index well with Shimano 7-speed stuff?
The Mavic technical reference for the 840 claims it will work with
"evenly spaced six, seven and eight speed freewheels". I find the 840
works pretty well set up for 8 speed Shimano spacing. While I have
heard folks come up with lots of different anecdotal ways of arranging
the cable and plastic cable guide to shift clamp, to shift other
spacing, I have only had success shifting 8 speed Shimano gears and
using the guide said toward the crankset. That said, I have only tried
with the 821 indexed shifters and Sachs Ergo shifters.
> I've read in Usenet that it works - but I've also got a new Ultegra unit,
> and is there really any point in installing the Mavic if the shifting simply
> isn't as good?
The Mavic 840 had durability the Ultegra will never achieve. The
Ultegra will shift more crisply than the 840 and weighs a great deal
less than the 840. If you are using STI, especially 9 speed, don't
bother with the Mavic. If you are using 8 speed and like the cool look
of the Mavic (and don't mind the added weight), go for it! I love it!
> And how do I route the cable? Through or over the little
> plastic thingy? Looking through Usenet, I've seen both as the correct
> answer.
According to the manual, if you are shifting 7 or 8 speed, turn the
pivot down and pass the cable around the outside of the pivot. I did
not find this to be optimal for my 8 speed Dura Ace cassette.
I've tried both down and flat against the parallelogram extensively. If
you are using 8 speed indexing, with Mavic shifters, simply leave the
plastic guide resting up against the parallelogram, routing the cable
around the underside of it and then up to the cable clamp. I find the
shifting flawless, despite what my manual says.
>
> The matching front derailleurs are braze-on units that I have not seen
> before. It does not fit a standard braze-on. Did Mavic produce a clamp
> fort these to fit a standard steel frame?
My manual does not cover this unit, though a few others in this forum
seem to have a reasonable answer to your question. I have used the
standard Mavic 870 front double braze-on, with no problem in a braze-on
frame and a Shimano braze-on adapter.
>
> Thanks!
>
>
Hope this helps,
Terry
>
Qui si parla Campagnolo
Braze-on, normal standard
Clip-on, 28mm (french)
In the late 80s? Doubt it was the simplex type...