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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 06-11-06, 07:40 PM   #1
Trekbikedude
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New Front Cassette?

Ok. I love my singled speed trek now and I want to make the change permanent. I know I need to buy a tensioner (right now I am using me rear derauiller) I know I need a new rear cog(cassette I don't think is unassembleable). But My question is can I use the nine speed front chainring with a 1/8 rear bmx cog and a 1/8 chain? Or will the extra side to side chain slop damage the front chainring? Any replies are greatly appreciated.



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Old 06-11-06, 07:46 PM   #2
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Using 1/8 chain on 3/32 chainring/cog is fine.
Might be slightly noisier but not a big deal.
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Old 06-11-06, 07:48 PM   #3
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Oh, and you can't use a singulator (chain tensioner) on a fixed ger so if the Trek has verticle dropouts, better buy an ENO or get a new frame.
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Old 06-11-06, 07:54 PM   #4
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I will most use something like a rennen chain tensioner.
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Old 06-11-06, 07:55 PM   #5
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If you are going to run a brake and never skid or skip, then okay.
But if not, then I'll repeat that you can't use a singulator/chain tensioner on a fixed gear.
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Old 06-11-06, 07:57 PM   #6
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Originally Posted by hyperRevue
Oh, and you can't use a singulator (chain tensioner) on a fixed ger so if the Trek has verticle dropouts, better buy an ENO or get a new frame.
sure you can. the singulator is designed for use on vertical dropout frames with a derailleur mount, and now have single speed freewheels.

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Old 06-11-06, 07:58 PM   #7
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sure you can. the singulator is designed for use on vertical dropout frames with a derailleur mount, and now have single speed freewheels.

Single speed, yes.
Not fixed gear.

They can't hold up to the pressure of skidding and skipping.
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Old 06-11-06, 08:07 PM   #8
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Even if you don't skip or skid I would not run a singulator on a fixed gear.
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Old 06-11-06, 08:07 PM   #9
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Thank you.
I was starting to think I was crazy.
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Old 06-11-06, 08:16 PM   #10
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uhm, he said its a singlespeed, and hes using a derailleur as his tensioner now.. so im pretty sure hes not talking about making a fixed gear.
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Old 06-11-06, 08:18 PM   #11
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uhm, he said its a singlespeed, and hes using a derailleur as his tensioner now.. so im pretty sure hes not talking about making a fixed gear.

You're not better than me!

Yeah, okay, I misread.
I for some reason took "make the change permenant" to mean "make it fixed."
Carry on...
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Old 06-11-06, 08:26 PM   #12
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I am not entirely clear what you are trying to do. Are you planning on buying a new rear wheel that is built for single speed use or just planning on using your old (multi-speed) wheel?

If it is the latter, you may be able to get away with not using a tensioner. Just buy one of those surly cogs and a bunch of spacers on your old wheel. You may be able to get the chainline to work and you can stick with a standard 3/32 chain (I would not mess with 1/8 unless you have to, especially for a free wheel conversion).
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Old 06-11-06, 09:01 PM   #13
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Try to find the magic gear so you don't need a tensioner.

http://community.webshots.com/photo/...8014369jHohCP#
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