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NOS Suntour Cogs: what are they?

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Old 05-11-20, 10:38 AM
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jeirvine 
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NOS Suntour Cogs: what are they?

I got a pile of NOS Suntour freewheel cogs. Many are Perfect, Pro Compe, and New Winner (which I am familiar with). But there are also these, which I am not, and they don't fit any of those models. I don't think they are cassette cogs. Anyone have an idea what model they are for? #pastorbobnlnh ?
They are marked:
F 14
B 15
C 15
B 16
B 17
B 18
Index C 15 AP
Index C 16
Index B 15 AP
Index B 17 AP
Index B 20 AP

Here are a few:

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Old 05-11-20, 11:11 AM
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Google 'suntour cog' chart. The colored one has all the details.
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Old 05-11-20, 11:45 AM
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Thanks. From the Yellow Jersey site it looks like they might be WinnerPro cogs, but I'm not finding a color cog chart that shows these cogs. link?
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Old 05-11-20, 11:48 AM
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There's colored chart on eBay.....decent price to.

https://www.ebay.com/itm/Suntour-Win...gAAOSwOPVetvga
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Old 05-11-20, 11:54 AM
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Yeah, I think Suntour's cassette cogs have round holes for the pins, which yours do not have. I can't verify that this is 100% correct, but I can verify it for the cassette cogs I have and for the pics I've been able to find online.
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Old 05-11-20, 05:37 PM
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Originally Posted by jeirvine
I got a pile of NOS Suntour freewheel cogs. Many are Perfect, Pro Compe, and New Winner (which I am familiar with). But there are also these, which I am not, and they don't fit any of those models. I don't think they are cassette cogs. Anyone have an idea what model they are for? #pastorbobnlnh ?
They are marked:
F 14
B 15
C 15
B 16
B 17
B 18
Index C 15 AP
Index C 16
Index B 15 AP
Index B 17 AP
Index B 20 AP

Here are a few:
The B and C cogs with the 15 splines, are for the middle position of the Winner Pro freewheels. These are the ones that came after the New Winner.
The Winner Pro's were my favorites, if only because almost all of the cogs were splined. Only the smallest cogs had to be unscrewed off the body.

The AP cogs, I think, were for the indexed SunTour derailleurs. I've got some cogs marked like this, but really don't know much about them.

I "inherited" a box full of cogs from a friend. They are mostly the stuff for Pro-Compe, Perfect, and New Winner. While SunTour really tried to make everything backward compatible (sort of), as well as making a scheme where one body could support quite a number of configurations, you could argue that things got out of control.
In my inventory of cogs, I have four different kinds of 18 tooth cogs (A, B, R and T versions). For 16 tooth cogs, I've got 6 versions: A, B, R, T, V, and X.
This is just what I've got... who knows how many more versions might exist??!!
I should also mention that I've three different versions of cogs marked "E14" too. This includes two different I.D.'s (38mm and 43mm), two flange thicknesses, and threaded and splined versions. So, if anyone talks to you about an E14 cog, make sure you know what specific version they are referring to!

Steve in Peoria
(if anyone is looking for a cog or two, I've got some that I should get rid of )
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Old 05-11-20, 08:11 PM
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The 20 tooth is for 6/7 late 80's AP accushift freewwhreel.
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