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PostPosted: Mon Oct 11, 2010 9:09 pm 
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Joined: Sun Dec 14, 2008 2:11 pm
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Most of the eight speed screw ons I've seen have been of the MTB/touring ratio persuasion. So, yes 8 speed screw ons are relatively common, but rare if you want a reasonably small granny sprocket. Something with, say, 21 teeth on the big sprocket would be fairly hard to come by.

Just out of interest though, why would you bother? Especially when 8 speed cassettes and cassette hubs are as common as muck and can be had for pocket money. The spacing from the dropout to the bearing on an eight speed screw on setup is huge, you'll be snapping axles every ten miles.


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 Post subject: freewheel
PostPosted: Mon Oct 11, 2010 9:16 pm 
Old School Grand Master
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Joined: Mon Sep 28, 2009 8:16 pm
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Location: north wales
I need it for my raleigh pro from 1987
It has Royce hubs fitted to mavic OR10 gold tubular rims suitable for screw on blocks,i have full Dura-ace 7402 8-speed groupset.


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PostPosted: Mon Oct 11, 2010 9:29 pm 
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All fine, but the fact remains that an eight speed screw on puts the drive side bearing miles away from the dropout and, as such, puts the axle under enormous strain. In terms of design and practicality it's frankly awful.

I'm even beginning to wonder if many screw on hubs could be offset far enough to take an eight speed on a 130mm OLN. The only road (-ish) bike I can recall owning with an eight speed screw on was a tourer spaced at 135mm and that went to a cassette hub after I broke the second axle.


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PostPosted: Mon Oct 11, 2010 9:51 pm 
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Joined: Mon Jul 28, 2008 10:29 pm
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daccordimark wrote:
pigman wrote:
NickD wrote:
TBH I could do with a Campag spaced one!!
A shimano 7 speed is the same spacing as campag 8, so you could use one of these. You would of course "lose" one cog, the campag name and need a non-campag hub ..... but if you're desperate its an idea.


The hub won't matter - it's a screw on type.
That would do the job.

Gareth - that is the reason they didn't last long in period, they had a habit of snapping axles. Still, it's a reasonable way of using a set of wheels I already own in an 8 speed setup, even if only temporarily,


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PostPosted: Tue Oct 12, 2010 10:07 am 
Old School Grand Master
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Joined: Wed Jul 25, 2007 2:04 pm
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Location: Completely in the dark, thanks to me good mate Terry....
GarethPJ wrote:
All fine, but the fact remains that an eight speed screw on puts the drive side bearing miles away from the dropout and, as such, puts the axle under enormous strain. In terms of design and practicality it's frankly awful.

I'm even beginning to wonder if many screw on hubs could be offset far enough to take an eight speed on a 130mm OLN. The only road (-ish) bike I can recall owning with an eight speed screw on was a tourer spaced at 135mm and that went to a cassette hub after I broke the second axle.


I used to ride a set of wheels built on Sachs New Success hubs with a 130mm screw-on rear. Used them for road and cross for about 5 years with no bother at all (I had to change one cartridge bearing in the front hub, but that was about it), but foolishly sold them thinking that replacement freewheels would be unobtainable once SRAM had gobbled up Sachs (not realising that NOS would still be knocking around for a while and Zenith would start doing off-the-shelf ones in time) and went for cassette hubs instead. Wish I'd kept them! :(

David


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 Post subject:
PostPosted: Tue Oct 12, 2010 2:54 pm 
King of the Skip Monkeys
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Location: Moomin Valley
http://cgi.ebay.co.uk/VINTAGE-SACHS-FRE ... 2a0ade31cf


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 Post subject:
PostPosted: Tue Oct 12, 2010 8:48 pm 
Old School Hero
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Joined: Fri Jun 12, 2009 2:02 pm
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Location: Maidenhead, Berkshire
So could any one tell me if these are screw on, as they are 8 speed Shimano that I am selling here http://www.retrobike.co.uk/forum/viewtopic.php?t=119436

Image


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PostPosted: Tue Oct 12, 2010 8:58 pm 
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lilolee wrote:
So could any one tell me if these are screw on

Indeed (they are)/(it is).


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 Post subject:
PostPosted: Fri Oct 15, 2010 1:36 pm 
Retro Guru

Joined: Mon Jan 15, 2007 12:12 am
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Location: Gold Coast Australia
lilolee wrote:
So could any one tell me if these are screw on, as they are 8 speed Shimano that I am selling here http://www.retrobike.co.uk/forum/viewtopic.php?t=119436

Image


I had an 8 spd cluster on some nice Mavic hubs , One day a few years ago i undid the rear quick release and the alloy axle was broken ...hardly a suprise really :(


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 Post subject:
PostPosted: Mon Oct 18, 2010 4:43 pm 
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Joined: Tue Jun 03, 2008 4:31 pm
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I bet you any old style cycle shop will have a pile of them under a bench. Mastercraft in Hereford still have the traditional workshop board with individual sprockets . Malliard turned into Sachs I believe?? and they used to make them. They don't break often, mine never have on a CX bike.


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