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PostPosted: Fri May 13, 2011 7:39 pm 
retrobike rider / Gold Trader
retrobike rider / Gold Trader
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Joined: Fri Oct 10, 2008 8:44 pm
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Location: Wherever it is, I'm being just that little bit more Lance
Thanks for all the hints. These are to use with a Rohloff though rather than just SS so still single speed but probably bigger than a 32t chainring.

Keep them coming, I'm still listening...


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PostPosted: Fri May 13, 2011 9:07 pm 
aka Leo Swayer
aka Leo Swayer
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Joined: Wed Jun 18, 2008 7:15 pm
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Location: Wales.UK
XTR 960 ones are awesome.
As above, there is a set in the 98> FS section now £55 :shock: i'd say that was a bargain :wink:
Oh but you want new ones :roll:


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PostPosted: Sun May 15, 2011 3:41 pm 
Retro Guru

Joined: Fri Jan 11, 2008 8:54 pm
Posts: 384
I think you hinted at it above but you need to check the minimum size of the chainring that you can use with the Rohloff. 32T is too small as it creates too much torque. From memory I think that the smallest recommended size is 38T.


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PostPosted: Sun May 15, 2011 9:08 pm 
Retro Guru

Joined: Mon Jun 02, 2008 9:22 pm
Posts: 1235
Are there any single ring external bb cranks other than the Middleburn RS8X and the surly one does anyone know?

I have Middleburn RS 7s on my bikes with uno rings and they work well and look great and I am well lardy and they havent snapped yet :-)


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PostPosted: Sun May 15, 2011 11:38 pm 
BoTM Winner
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Joined: Sun Oct 23, 2005 7:22 pm
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Location: Wooster, Ohio
I personally like these, but I am biased :D

http://groovycycleworks.com/HotRodCranks.aspx

FWIW, the blue set is a Rohloff chainline crank and is available with either 4 or 5 bolt spider. If you decide you want it, I'll send John a donation for facilitating the purchase by hosting the site we all love.

cheers,

rody


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PostPosted: Mon May 16, 2011 8:55 pm 
retrobike rider / Gold Trader
retrobike rider / Gold Trader
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Location: Wherever it is, I'm being just that little bit more Lance
rody wrote:
I personally like these, but I am biased :D

http://groovycycleworks.com/HotRodCranks.aspx

FWIW, the blue set is a Rohloff chainline crank and is available with either 4 or 5 bolt spider. If you decide you want it, I'll send John a donation for facilitating the purchase by hosting the site we all love.

cheers,

rody


Those look smashing! Let me re-visit my budget. Do you do them in 170mm? I'm weak and puny and don't have the necessary brute force to grind away on long cranks, I prefer spinning away on shorter ones.


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PostPosted: Mon May 16, 2011 10:57 pm 
retrobike rider
retrobike rider

Joined: Sat Dec 12, 2009 6:15 pm
Posts: 526
Location: western sussexshire
You would need a looong bottom bracket axle if you used the Middleburn Uno (same applies to White Ind Eno) - it has the wrong chainline for a Rohloff (54.5 iirc), which if you look has the sprocket much further out on the axle compared to middle cassette positon of a ss. I've looked into this, a standard crank and use just the middle ring. I think a modern Middleburn square taper with a four bolt xc spider, and a Thorn reversable 38 chainring would/will be my ultimate choice.

You won't need bigger than a 38 off road, especially with a big wheeler..

Happy hunting!


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 Post subject:
PostPosted: Sat May 21, 2011 9:43 pm 
retrobike rider / Gold Trader
retrobike rider / Gold Trader
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Joined: Fri Oct 10, 2008 8:44 pm
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Location: Wherever it is, I'm being just that little bit more Lance
Cheers Pete, I've been leaning this way and I think you've confirmed it.


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 Post subject:
PostPosted: Wed May 25, 2011 1:47 pm 
Retro Guru
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Joined: Mon Feb 15, 2010 10:37 am
Posts: 723
Location: berkshire
i believe in fixies wrote:
Thanks for all the hints. These are to use with a Rohloff though rather than just SS so still single speed but probably bigger than a 32t chainring.

Keep them coming, I'm still listening...


middleburn do 32 34 and 36 uno rings as i understand

stubbsy :D


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