Bike Forums - Suntour 7speed cog availability?

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- - Suntour 7speed cog availability? (https://www.bikeforums.net/classic-vintage/1320841-suntour-7speed-cog-availability.html)

smontanaro

05-16-26 10:08 AM

Quote:

Originally Posted by sspeed (Post 23745767)

I appreciate the offer! I also have one of those and it's too wide for this particular frame. I usually just do the <$20 Shimano freewheels, but even that is too wide for this frame.

No option to slide around some spacers and re-dish the wheel slightly?

sspeed

05-17-26 06:14 PM

Quote:

Originally Posted by smontanaro (Post 23745822)

No option to slide around some spacers and re-dish the wheel slightly?

Unfortunately not, it's a sealed bearing hub and appears to have a shoulder on the axle that the bearing has to sit against. If it was a cup and cone hub I totally could.

sspeed

05-17-26 06:15 PM

Quote:

Originally Posted by pastorbobnlnh (Post 23745785)

I have this on hand; three used 14Ts, and one NOS 13T.

BTW, Winner 13T will not fit on an Alpha body.

I'm overwhelmed by the awesomeness of the response to this post, thank you so much everyone! pastorbobnlnh has a 13t on the way to me!

sspeed

05-17-26 06:17 PM

Quote:

Originally Posted by steelbikeguy (Post 23745658)

well, the E, S, and U cogs were for the New Winner, and as the drawing indicates, the E and S cogs were intended to fit on the last spot on the freewheel body. There's a chance that it might fit on the Alpha too. I'd have to measure the ID of a E or S cog to figure out how big it is.

https://cimg0.ibsrv.net/gimg/bikefor...824200f3e1.jpg

Steve in Peoria

Wow, this is a spectacular diagram. I assumed it's for the Winner hub body, need to look for one for the Alpha hub body.

smontanaro

05-17-26 07:19 PM

Quote:

Originally Posted by sspeed (Post 23746457)

Wow, this is a spectacular diagram. I assumed it's for the Winner hub body, need to look for one for the Alpha hub body.

If you find one pass it along. I collect this stuff.

https://photos.app.goo.gl/UhhCHfDN5qUpzNz18

dddd	05-18-26 12:23 PM

Quote:

Originally Posted by sspeed (Post 23746457)

Wow, this is a spectacular diagram. I assumed it's for the Winner hub body, need to look for one for the Alpha hub body.

I'm gonna guess that since the Alpha-series freewheels had new, subtle cog features added for robust index shifting, Suntour may have not wanted shops tinkering with them with the possibility of the older cogs getting fitted (to the detriment of shifting performance).

So I'm going to say that as I've also never seen one, I don't think that any Alpha freewheel "charts" or posters were ever produced.

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