| |
Main
Date: 26 Jun 2007 20:50:48
From: Steve Watkin
Subject: 1984 Moulton AM7 question
|
I have the 9-30 7 speed cogs on my bike. I am considering trying to
set them up as indexed but wonder if anyone has tried this?
Was it successful? None of the individual cogs are ramped but the 3
small ones seem to be "twisted" , does this cog set index or do you
always have to over-shift?
If indexing is possible, what's the cog spacing ? 5mm ? And what
shifter should be used with drops ?
Sorry for so many questions but if someones been through this all
before it would be a great help.
SW
|
|
| |
Date: 27 Jun 2007 09:14:07
From: M-gineering
Subject: Re: 1984 Moulton AM7 question
|
Steve Watkin wrote:
> I have the 9-30 7 speed cogs on my bike. I am considering trying to
> set them up as indexed but wonder if anyone has tried this?
> Was it successful? None of the individual cogs are ramped but the 3
> small ones seem to be "twisted" , does this cog set index or do you
> always have to over-shift?
> If indexing is possible, what's the cog spacing ? 5mm ? And what
> shifter should be used with drops ?
> Sorry for so many questions but if someones been through this all
> before it would be a great help.
>
> SW
>
>
mine's an 8 speed with a Sachs Neos derailleur and a 8 speed Shimano
downtubelever. Freewheel could be an suntour with the three Moulton
endcogs, and it works well enough. It's been a long time ago but I don't
think if I had to mess about with cogspacing much.
--
/Marten
info(apestaartje)m-gineering(punt)nl
|
| |
Date: 26 Jun 2007 20:13:46
From: JeffWills
Subject: Re: 1984 Moulton AM7 question
|
On Jun 26, 2:38 pm, Tim McNamara <tim...@bitstream.net > wrote:
> In article <M6mdnc8sHueK8xzbnZ2dnUVZ8smon...@bt.com>,
> "Steve Watkin" <steve.watk...@btinternet.com> wrote:
>
> > I have the 9-30 7 speed cogs on my bike. I am considering trying to
> > set them up as indexed but wonder if anyone has tried this? Was it
> > successful? None of the individual cogs are ramped but the 3 small
> > ones seem to be "twisted" , does this cog set index or do you always
> > have to over-shift? If indexing is possible, what's the cog spacing ?
> > 5mm ? And what shifter should be used with drops ? Sorry for so many
> > questions but if someones been through this all before it would be a
> > great help.
>
> Is that a Shimano 6 or 7 sp cassette hub with three special Moulton cogs?
Not if it's from 1984...
I'd be willing to bet it's a Suntour freewheel, with a couple custom
cogs at the inside. Suntour "New Winner" freewheels went down to 11
teeth on a six-speed setup, so 9 on a 7-speed isn't a stretch. (Really
fuzzy memories of a Bicycle Guide magazine review surfacing here...)
If it *is* a New Winner freewheel, then the spacing isn't consistent
between the cogs and indexing probably isn't possible.
You're probably better off consulting with Angle Lake Cyclery in
Seattle: http://anglelake.com/index.html if you're in the U.S. or the
Moultoneers if you're strictly virtual: http://www.moultoneers.info/
:-)
If you have your heart set on indexing, "upgrading" to a Shimano
Capreo setup is probably your best bet: http://sheldonbrown.com/capreo/index.html
.
Jeff
|
| |
Date: 26 Jun 2007 17:38:23
From: Tim McNamara
Subject: Re: 1984 Moulton AM7 question
|
In article <M6mdnc8sHueK8xzbnZ2dnUVZ8smonZ2d@bt.com >,
"Steve Watkin" <steve.watkin1@btinternet.com > wrote:
> I have the 9-30 7 speed cogs on my bike. I am considering trying to
> set them up as indexed but wonder if anyone has tried this? Was it
> successful? None of the individual cogs are ramped but the 3 small
> ones seem to be "twisted" , does this cog set index or do you always
> have to over-shift? If indexing is possible, what's the cog spacing ?
> 5mm ? And what shifter should be used with drops ? Sorry for so many
> questions but if someones been through this all before it would be a
> great help.
Is that a Shimano 6 or 7 sp cassette hub with three special Moulton cogs?
|
|
