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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

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Old 08-13-14, 11:24 AM   #1
ingm80
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chain tension on single speed

hi,

i have a single speed and there is nothing i can do to adjust the tension of the chain.(modern carbon road frame vertical drop outs) i have had a look at the chain and i can see its going to snap. so i need a new chain as i dont want to be stranded

so i was thinking can i just put one of those tensioners on where the spindle goes through the back wheel or do i need a frame mounted one?

do i need it to push the chain up or down?

and lastly i have no idea what chain i have

any answers
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Old 08-13-14, 01:21 PM   #2
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That should work.
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Old 08-13-14, 01:48 PM   #3
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That should work.
Great work. Very insightful
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Old 08-13-14, 03:50 PM   #4
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Since you have a converted bike with a road crank, any old chain will do. KMC, SRAM work for me. You might get lucky and it fit fine, maybe you need a half link. Tensioners work fine, too. Everything easily available online most anywhere.
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Old 08-13-14, 04:33 PM   #5
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I just went through this... I converted a mtb frame to ss and used a Forte tensioner kit. The flex from it being a spring tensioner kept throwing my chain alignment off when under load so I took the tensioner apart removed the spring and reinstalled it. Works great for the cost of 25ish bucks. Since it sounds like you are rigged up except for the tensioner all I can advise is to get a springless tensioner (DMR makes a good one I think), use a rigid mount of some sort. Up, down, I dont think it matters but I think up looks best.
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Old 08-13-14, 05:30 PM   #6
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tensioner or eccentric bottom bracket.
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Old 08-14-14, 12:57 AM   #7
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tensioner or eccentric bottom bracket.
would i need to mount the tensioner on the frame (carbon) or could i put on the wheel spindle?

and i take it no spring in the tensioner

thanks
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Old 08-14-14, 12:58 AM   #8
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opps also confused about the rigid mount
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Old 08-14-14, 03:51 AM   #9
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again sorry

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Originally Posted by ingm80 View Post
opps also confused about the rigid mount
Brand-X Chain Tensioner | Chain Reaction Cycles

would this work

the frame is carbon would i be ok attaching this to the frame ?

thanks in advance

if you have a better idea could you post a european link

thanks
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Old 08-14-14, 03:56 AM   #10
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that would work.

what kind of bike do you have? also where is the derailler hanger.
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Old 08-14-14, 04:55 AM   #11
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that would work.

what kind of bike do you have? also where is the derailler hanger.
it is a giant carbon road frame

there is a picture above, can you see the it?

thanks

john

Last edited by ingm80; 08-14-14 at 04:59 AM. Reason: spelling error
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Old 08-14-14, 09:51 AM   #12
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y no ENO hub?
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Old 08-14-14, 10:22 AM   #13
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Quote:
Originally Posted by ingm80 View Post
it is a giant carbon road frame

there is a picture above, can you see the it?

thanks

john
We all can certainly see the it.

Once again, where is the derailleur hanger?
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Old 08-14-14, 11:38 AM   #14
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We all can certainly see the it.

Once again, where is the derailleur hanger?
i dont know i assume if went through where the back wheel is

it is a giant ocrc3 frame
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Old 08-14-14, 01:53 PM   #15
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This one looks cool

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Old 08-14-14, 01:54 PM   #16
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Quote:
Originally Posted by ingm80 View Post
i dont know i assume if went through where the back wheel is

it is a giant ocrc3 frame
Okay, this is what you should have back there (this pic is a Giant OCR C3 frame)



The derailleur hanger is the bit below the dropout with the hole in it. You'll need that to be able to mount a chain tensioner.
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Old 08-14-14, 03:01 PM   #17
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unless it is a chainstay mount like the OP linked to.
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Old 08-15-14, 06:09 AM   #18
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it looks like i dont have that, so i am guessing i need something that mounts on the frame itself
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Old 08-15-14, 11:47 AM   #19
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Get one that attaches on to the chainstay.
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Old 08-15-14, 02:37 PM   #20
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OP...the butcher job that someone did to the drop-out on your bike is a shame. Thank goodness you don't mind a tensioner, hope you find one you like - you'll need it...
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