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 Post subject: Re: 6 speed freewheel
PostPosted: Tue Aug 27, 2013 5:50 pm 
Retro Guru

Joined: Tue Feb 23, 2010 1:56 pm
Posts: 1032
Location: West Yorkshire
bikenut2010 wrote:
Chuck moo wrote:
Midlife wrote:
First double check that the rear mech can cope with the large cog :). I have bought from campyoldy, not the cheapest but the kit I got was brand new from the 70's and I have never heard a bad word about him. Any chance of getting a smaller chainring ?

Shaun


I am running a 41 on a record chainset, so no smaller and the rear mech is super record and my homework said it should shift upto 28 teeth

41T front and 22 rear = 50" gear, a 39T ( smallest ring on Campy ) = 47"
or 39T and 28 rear even better 37" gear which I use on all but stupid silly 20% hills where I use a compact ( 34T front )


On old 144mm BCD Record it's 41T minimum.

To the OP a 28T cog with a Super record rear mech didn't work for me. The top jockey wheel crashed into the cog as it shifted onto it and I didn't fancy risking damage to the rear mech. I know others say they run the combination OK but no amount of chain length alteration and moving the wheel to different positions in the dropouts got it working smoothly.

Mark.


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 Post subject: Re: 6 speed freewheel
PostPosted: Tue Aug 27, 2013 6:10 pm 
Retro Guru

Joined: Sun Aug 07, 2011 10:55 am
Posts: 2918
Location: Dorset
I have just looked on the Campoldy website as I am looking for a better geared 6 speed Suntour and noticed they are in Wimborne which is just round the corner from me :D


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 Post subject: Re: 6 speed freewheel
PostPosted: Tue Aug 27, 2013 9:18 pm 
Devout Dirtbag

Joined: Tue Jul 17, 2012 6:09 pm
Posts: 147
Location: Hexham
So mark what size did you manage to run then?


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 Post subject: Re: 6 speed freewheel
PostPosted: Wed Aug 28, 2013 6:33 am 
Retro Guru

Joined: Tue Feb 23, 2010 1:56 pm
Posts: 1032
Location: West Yorkshire
Chuck moo wrote:
So mark what size did you manage to run then?


24 worked well, 26 might just work but will probably mean shortening the chain so much there are only 3 usable gears on the big ring. In the end I ditched the Campag chainset (52/42) and fitted a Suntour Superbe Pro with a 130mm BCD so I could run a 38T inner ring.

Mark.


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 Post subject: Re: 6 speed freewheel
PostPosted: Wed Aug 28, 2013 7:38 am 
Retro Guru
User avatar

Joined: Tue Jul 20, 2010 8:22 am
Posts: 2075
Location: Warks
daccordimark wrote:
To the OP a 28T cog with a Super record rear mech didn't work for me. The top jockey wheel crashed into the cog as it shifted onto it and I didn't fancy risking damage to the rear mech. I know others say they run the combination OK but no amount of chain length alteration and moving the wheel to different positions in the dropouts got it working smoothly.

Mark.


I have a bike with old 144 record and run a 14-28 freewheel on a nuovo record rear mech with no problems, weird stuff... :shock:


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 Post subject: Re: 6 speed freewheel
PostPosted: Wed Aug 28, 2013 9:08 am 
Devout Dirtbag

Joined: Tue Jul 17, 2012 6:09 pm
Posts: 147
Location: Hexham
Thanks fellas I will just have to try various combinations
Cheers


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 Post subject: Re: 6 speed freewheel
PostPosted: Fri Sep 13, 2013 12:24 pm 
Retro Guru
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Joined: Mon Jul 27, 2009 8:21 pm
Posts: 434
Did you sort out a 6 speed freewheel?

I have one at home that appears unused and is surplus to requirements.


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 Post subject: Re: 6 speed freewheel
PostPosted: Sun Sep 15, 2013 11:44 pm 
Retro Guru

Joined: Wed Dec 10, 2008 9:19 am
Posts: 2093
Location: Sheffield, top city
I was able to run a 14-28 with a NR rear mech if I ran it with a single 42t chain ring. If I introduced a double so it was 42/52 and a longer chain, the jockey wheel clashed wih the 28 cog.


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