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PostPosted: Fri Feb 10, 2012 11:32 am 
Old School Grand Master
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Joined: Fri May 01, 2009 7:11 pm
Posts: 8479
Location: Fircombe.
cyfa2809 wrote:
Is that so? How slack per se should it be run then?
Ive never had mine dead tight as it sounds all 'crunchy' then and you know something isnt right.

As per the piccy is ideal. A touch tighter maybe, and it could easily be run a lot looser.
If you can't roll the chain off the cog/ring without removing the wheel, it's tight enough.


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PostPosted: Fri Feb 10, 2012 2:16 pm 
Retro Guru
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Joined: Thu Jun 23, 2011 11:25 pm
Posts: 1785
Location: It's not easy being a dolphin.
There's some good input here about chain stretch:
http://www.youtube.com/watch?v=RGjcD8xEu8o


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PostPosted: Fri Feb 10, 2012 2:36 pm 
Retro Guru
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Joined: Tue Aug 07, 2007 12:22 pm
Posts: 2942
Location: Platsa, Messinias, Greece
suburbanreuben wrote:
The biggest cause of chain stretch is running the chain too tight. The number of singlespeeds I see on here with perfectly straight chains from cog to ring; blimus!
Run looser, like on my Solitaire, they last forever...


But under load (which is surely when the wear occurs) the top run of the chain is as tight as, well you know, a very tight thing (so actually under tension, then) and the bottom run will then be even looser than it appears to be when the bike is "at rest", so to speak.
My view on this is to run the chain as slack-free as possible but without there being any noticeable drag - so that if you spin the cranks backwards they'll spin for a couple of revolutions.
I would suspect that the reason that you are of the opinion that loose chains last longer is because any incremental wear is less easily spotted than if the chain was run at the sort of tension that I use. Otherwise, unless we're talking about stupid amounts of actual tension (not just taking up slack), I can't see why it would make any difference as the tension in the top run of the chain will be the same for a given loading.


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PostPosted: Fri Jun 08, 2012 7:48 pm 
Dirt Disciple

Joined: Thu Jun 07, 2012 10:54 pm
Posts: 12
Location: Blackburn
:D


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 Post subject:
PostPosted: Fri Jun 08, 2012 8:38 pm 
Old School Grand Master
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Joined: Sat May 20, 2006 2:56 pm
Posts: 4776
Location: No brakes? Way to commit soldier.
I love my singlespeed.

Literally, love it.

That is all.


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PostPosted: Mon Jun 11, 2012 2:16 pm 
Old School Hero

Joined: Wed Aug 11, 2010 4:54 pm
Posts: 165
Russell wrote:
I love my singlespeed.

Literally, love it.

That is all.

now ive got my gear ratio I feel the same and glad i dint build geared


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PostPosted: Mon Jun 11, 2012 6:25 pm 
Gold Trader / rb Rider / Special
Gold Trader / rb Rider / Special
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Joined: Mon Aug 31, 2009 12:26 am
Posts: 16165
Location: Rurally close.
Thats all it takes, i believe there is a correct ratio for everyone (maaaaan).


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PostPosted: Fri Jun 21, 2013 11:48 pm 
Retro Guru

Joined: Sun Jun 20, 2010 4:39 pm
Posts: 1455
i've just read all 7 pages.....and built a single speed......let's see!!!!


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PostPosted: Sat Jun 22, 2013 9:14 am 
South West Deputy AEC
South West Deputy AEC
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Joined: Mon Nov 09, 2009 4:53 pm
Posts: 1182
Location: Devon
More attractive to the opposite sex. Check
Massive calves. Check
Ability to grow bushy beard. Check
Rad super gnarly godlike riding skillz. Check

You see, it all makes sense. ;)


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PostPosted: Sat Jun 22, 2013 10:50 am 
Retro Guru
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Joined: Fri Jan 12, 2007 1:32 pm
Posts: 1953
Location: Staffordshire
I'm going to rebuild my old Beast of the East as a single speed partly because I'd like to try it and partly because it'll be cheaper.

I'm in the process of collecting bits. So far I've got some '97 Z3 Lights, Race Face headset, Race Face North Shore cranks, Race Face post, old school Hope Bulb hubs, Flite saddle and M952 v brake levers. Plan is to get the frame powder coated in metallic grey next month and get it going shortly.

Not sure what to do with regards to a chain tensioner though.


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