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PostPosted: Mon Nov 12, 2007 11:11 am 
retrobike rider / Gold Trader
retrobike rider / Gold Trader

Joined: Sat Jul 21, 2007 9:48 am
Posts: 6980
Location: Bristle
i have a couple of cassettes sitting around, and i want to run 40:13 for road work if i do this, off the shelf sprockets tend to be bigger.


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 Post subject:
PostPosted: Mon Nov 12, 2007 11:19 am 
East Midlands AEC
East Midlands AEC
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Joined: Thu Oct 05, 2006 7:45 pm
Posts: 15067
Location: Derby, UK
If you're running a 13 at the back you won't be able to use the plastic spacers as the cogs sit too low and the chain won't engage, if you notice on cassettes the last 2 cogs have metal intergrated spacers that sit lower... I tried that and found out the hard way!


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PostPosted: Mon Nov 12, 2007 11:20 am 
retrobike rider / Gold Trader
retrobike rider / Gold Trader

Joined: Sat Jul 21, 2007 9:48 am
Posts: 6980
Location: Bristle
hmmm. 48:16 it is then.


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 Post subject:
PostPosted: Mon Nov 12, 2007 11:23 am 
East Midlands AEC
East Midlands AEC
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Location: Derby, UK
I run a 46:15 successfully using plastic spacers, but a 14 won't work.


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PostPosted: Mon Nov 12, 2007 11:23 am 
Pumpy's Bear
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Joined: Mon Oct 10, 2005 10:03 pm
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Location: Hereford
I'm sure that you already know this but you won't be using a sprocket from a cassette will you? The ramps and funny shapes will make the chain try to shift even without a rear mech. As above, just get a ss specific/flat sprocket.


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PostPosted: Mon Nov 12, 2007 11:25 am 
East Midlands AEC
East Midlands AEC
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Joined: Thu Oct 05, 2006 7:45 pm
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Location: Derby, UK
I use sprockets from old cassettes. It works if you're OK with Ghetto! Not so good if you have a 'push-down' tensioner though as you have less chain wrap. Fine with old derailler/no tensioner/Rohloff style 2 wheel tensioner.


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PostPosted: Mon Nov 12, 2007 11:41 am 
Retro Guru
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Joined: Wed Sep 20, 2006 11:23 am
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Location: Winchester
Ten Pounds for a bit more confidence (trying desperately not to jinx myself here!) that the chain won't hop off when you're out of the saddle on the way up that steep hill? Worth it for me... Less maintainance too - will last way longer!


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 Post subject:
PostPosted: Mon Nov 12, 2007 11:42 am 
East Midlands AEC
East Midlands AEC
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Joined: Thu Oct 05, 2006 7:45 pm
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Location: Derby, UK
charliethebikemonger does nice shiny spacers that you can set up for 7/8/9 speed hubs.


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 Post subject:
PostPosted: Mon Nov 12, 2007 11:42 am 
Devout Dirtbag
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Joined: Sat Nov 03, 2007 12:34 am
Posts: 126
Location: Berkshire, UK.
Got to agree with the above.. For the sake of a few quid seems pointless! Contact Woollyhatshop, get them to send you the kit and ask nicely for a 7 speed spacer ring, they are only peanuts! You'll have a proper setup and you wont end up knocking your teeth out on your handle bars :lol:


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PostPosted: Mon Nov 12, 2007 12:27 pm 
Posh Mark
Posh Mark
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Joined: Wed Apr 18, 2007 2:49 pm
Posts: 5982
Location: As far from the city as you can be ....
exbiker wrote:
Im using a wooleyhatshop 8 spd one on a 7spd and as mentioned above bin off one of the spacers and you will need one cassette spacer for it to work.


Ditto. Absolutley no problem.

See Pic:


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A2Z_SS_Converter.JPG
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