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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 01-04-12, 02:57 PM   #1
dugan661
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freewheel to fixed gear with track cog

hey there i have been reading up on how to turn my beautiful 1974 raleigh grand prix to a fixed gear by using a track cog and bottom bracket lock ring...my question is do i have to use some type of threaded track cog or do these Splined ones work?
the bike is in very good shape and all original other then being striped down and has an atoms freewheel thats been make to a fixed gear by welding it...

im looking for a low tooth count one around 10-13t as my chain ring is only 40t and im a strong rider looking for a work out i found this cog but dont know if it will work... where can i find the spacers/ needed cogs? thanks!!


http://www.amazon.com/Dimension-12t-.../dp/B0013G4YDY
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Last edited by dugan661; 01-04-12 at 03:13 PM.
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Old 01-04-12, 03:01 PM   #2
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What are you stating/asking/linking?
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Old 01-04-12, 03:07 PM   #3
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Yeah, is there some question here? It's just a cog for a bmx cassette. It's not compatible with the Miche carrier.
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Old 01-04-12, 03:09 PM   #4
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Old 01-04-12, 03:11 PM   #5
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wtf idk how that happen but i hope its fixed now

basicly i need to know what KIND of track cog i need to turn a freewheel to a fixed gear
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Old 01-04-12, 03:15 PM   #6
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Proper thread here. He's looking for information on a suicide hub.
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Old 01-04-12, 03:17 PM   #7
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wtf idk how that happen but i hope its fixed now

basicly i need to know what KIND of track cog i need to turn a freewheel to a fixed gear
You can't turn a freewheel into a fixed gear. You can remove a threaded freewheel and install a threaded track cog and BB lockring in it's place. This is commonly referred to a "suicide hub", because the lockring is not reverse threaded, and the cog can still loosen when you backpedal / skid.
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Old 01-04-12, 04:27 PM   #8
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Originally Posted by dugan661 View Post
hey there i have been reading up on how to turn my beautiful 1974 raleigh grand prix to a fixed gear by using a track cog and bottom bracket lock ring...my question is do i have to use some type of threaded track cog or do these Splined ones work?
the bike is in very good shape and all original other then being striped down and has an atoms freewheel thats been make to a fixed gear by welding it...

im looking for a low tooth count one around 10-13t as my chain ring is only 40t and im a strong rider looking for a work out i found this cog but dont know if it will work... where can i find the spacers/ needed cogs? thanks!!

http://www.amazon.com/Dimension-12t-.../dp/B0013G4YDY
If you are using the original threaded freewheel hub, splined cogs will not work. Also, be aware that 13T is about the smallest threaded cog that will fit on a freewheel hub.
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Old 01-04-12, 04:33 PM   #9
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If you are using the original threaded freewheel hub, splined cogs will not work. Also, be aware that 13T is about the smallest threaded cog that will fit on a freewheel hub.
A 12T will fit, but you won't be able to use a BB lockring, and in fact you won't be able to use a BB lockring with anything smaller than a 14T.
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Old 01-05-12, 10:02 AM   #10
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Why did you start the same thread twice in 10 minutes?
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Old 01-05-12, 12:01 PM   #11
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I dont know how that happen...
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Old 01-05-12, 01:05 PM   #12
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You need to take Internet Forum Posting 101.
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Old 01-05-12, 01:17 PM   #13
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