Singlespeed & Fixed Gear - freewheel to fixed gear with track cog

Bikeforums.net is a forum about nothing but bikes. Our community can help you find information about hard-to-find and localized information like bicycle tours, specialties like where in your area to have your recumbent bike serviced, or what are the best bicycle tires and seats for the activities you use your bike for.




dugan661
01-04-12, 01:57 PM
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-Splined-Cog-Singlespeed/dp/B0013G4YDY


ddeadserious
01-04-12, 02:01 PM
What are you stating/asking/linking?

striknein
01-04-12, 02:07 PM
Yeah, is there some question here? It's just a cog for a bmx cassette. It's not compatible with the Miche carrier.


Jaytron
01-04-12, 02:09 PM
Coolstorybro.jpg

dugan661
01-04-12, 02:11 PM
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

ddeadserious
01-04-12, 02:15 PM
Proper thread here (http://www.bikeforums.net/showthread.php/790432-freewheel-to-fixed-gear-with-track-cog). He's looking for information on a suicide hub.

TejanoTrackie
01-04-12, 02:17 PM
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.

JohnDThompson
01-04-12, 03:27 PM
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-Splined-Cog-Singlespeed/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.

TejanoTrackie
01-04-12, 03:33 PM
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.

jimmytango
01-05-12, 09:02 AM
Why did you start the same thread twice in 10 minutes?

dugan661
01-05-12, 11:01 AM
I dont know how that happen...

TejanoTrackie
01-05-12, 12:05 PM
You need to take Internet Forum Posting 101.

Doohickie
01-05-12, 12:17 PM
Did I remember to dust the tabletop today?