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Single cogs for shimamo 7/8 speed freehubs?

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Single cogs for shimamo 7/8 speed freehubs?

Old 08-03-21, 01:44 PM
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browndude3649
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Single cogs for shimamo 7/8 speed freehubs?

Where do you guys get ur cogs for a roadie singlespeed set up?
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Old 08-03-21, 03:18 PM
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FSA 53/39 tooth. What's the biggest rear recommended sprock if I used the 53T ?
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Old 08-03-21, 04:27 PM
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Originally Posted by browndude3649 View Post
FSA 53/39 tooth. What's the biggest rear recommended sprock if I used the 53T ?

How big of a gear do you want to push? A 53 X 20 will get you 70 gear inches, but I have no idea if that'll work for your terrain. Personally, I'd use the 39T and fine tune it with a 14, 15, 16, or even 17T cog, depending on how hilly your routes are. Plus, you'll get better chainring clearance, if that matters to you.
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Old 08-03-21, 06:30 PM
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Just put this on a road bike and it works fine. The included spacers were needed for a new conversion.
CyclingDeal Conversion Kit Fixie Bike Single Speed Compatible with Shimano Sram Cassette Freewheel Hub Adaptor - for Mountain and Road Bike Gear Cog Spacers 16 Teeth

BTW, I paired it with a 42.
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Old 08-04-21, 11:00 PM
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Originally Posted by browndude3649 View Post
Where do you guys get ur cogs for a roadie singlespeed set up?
I just take apart a couple of cassettes for the spacers and the cogs. Then I just use whichever cog that coupled with the chairing I have to get the gear I want. A lot of times a bicycle shop will give me a couple of worn out cassettes for the spacers in them.

Oh, if it's a Uniglide cassette body, I've found that many times a bottom bracket lockring can be use to hold the spacers and cog in place. To me it looks a lot neater than a small screw on cog does on a single speed.



Cheers
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Old 08-05-21, 03:05 AM
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Anybody like the(25$) bombshell alum. Cog? Profile has diff cogs also.
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Old 08-05-21, 03:07 AM
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Originally Posted by Miele Man View Post
I just take apart a couple of cassettes for the spacers and the cogs. Then I just use whichever cog that coupled with the chairing I have to get the gear I want. A lot of times a bicycle shop will give me a couple of worn out cassettes for the spacers in them.

Oh, if it's a Uniglide cassette body, I've found that many times a bottom bracket lockring can be use to hold the spacers and cog in place. To me it looks a lot neater than a small screw on cog does on a single speed.



Cheers
I have a HG cassette I just never split the six cog block from each other. I'd like to use the big chainring up front with a big cog off the cassette but.....
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Old 08-05-21, 07:18 AM
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Originally Posted by browndude3649 View Post
I have a HG cassette I just never split the six cog block from each other. I'd like to use the big chainring up front with a big cog off the cassette but.....
Take a close look at the freehub body. Some early Hyperglide ones were transitional ones and could be use with either Hyperglide or Uniglide cassettes. Those freehub bodies had threading on the outside for a small Uniglide cog as well as t he internal threading for the Hyperglide lock ring.

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Old 08-05-21, 09:37 PM
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Originally Posted by browndude3649 View Post
I have a HG cassette I just never split the six cog block from each other. I'd like to use the big chainring up front with a big cog off the cassette but.....
There are any number of cogs that would work, from 5-speed Uniglide, to 11-speed Hyperglide. It just needs to fit the splines on your freehub. The nicer cassettes had/have little bolts holding them together that you can undo with a 4mm wrench or pair of pliers. Cheaper cassettes will need a Dremel to grind out the rivet heads.

If you have horizontal dropouts, you could probably even use a worn cog that was starting to skip when you were running it with a derailleur.
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Old 08-08-21, 08:03 PM
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Took a ride to San rafael's bike kitchen (trips for kids). Found an old shimano cassette with the rivets drilled out and spacers included, acoupla no name cogs. Experiment time!
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Old 08-08-21, 08:50 PM
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I use the cheap Dimension splined SS cogs. I got mine over the years from a LBS for $6 each. Plain steel SS cogs for Shimano free hub. Iíve run mostly 42/16 or 42/17 on my 26er. They make them in a lot of sizes. I canít speak to current availability through part suppliers.

Otto
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