Feeling inspired by a modern replacement freewheel that is knocking after only 100 miles, I decided to try and tackle rebuilding this Suntour Perfect freewheel that was otherwise never going to get used. The 14t was a bit more stuck than I had hoped. On the first attempt the chainwhip slipped / bent and destroyed this poor 14t cog.



After straightening the chain whip in a vise, I was able to give it another go successfully.



And completely apart.



Am I wrong that these 14t cogs don't really come around too often? I'm wondering if this just needs to become a parts freewheel and I just need to obtain another. I looks like there are some "reasonably" priced 14-22 NOS ultra 6 freewheels available. Wondering if I could adapt these larger cogs with the narrower spacers onto this freehub. Or I guess I can always return the knocking freewheel to amazon and give a second one a try. Maybe I could even pull it apart and remedy the knocking with a clean and regrease.

I suspect someone in the collective has what you need sitting around so you can get that old freewheel back on the road where it belongs.

@bikemig is correct. I have a spare 14t Suntour Perfect cog that shows little wear. PM me your address and it will be on its way......

Dave

paging Pastor Bob

There is also a chap here with countless bins of parts from Charlie Harding's shop near UCLA. Charlie used to have the obligatory pegboards with individual Regina and SunTour cogs sorted by tooth count, position, etc.

I've got some spare E14 cogs too. The "E" designation is from the Winner/New Winner family, but I think fits the Perfect body? The ID is 43mm. I've got versions in silver, brown and gold, so they must have been used on the Perfect and ProCompe.

Steve in Peoria

Try bending the tooth back. Nothing to lose at this point.

To confirm, the first and second position Perfect and ProCompe threaded sprockets and the second position threaded sprockets on the Winner series of freewheel bodies, are all interchangeable (threading wise). However, they have different built-in spacer thicknesses.

I have plenty of 14T sprockets which fit this position.

Cheers to the OP for servicing his freewheel! Fantastic!

Good eye, and good catch. I missed the bent tooth, mistook the shadow for a roughened and broken area, and thought it had snapped off. I should have realized that a new break would have shown up as shiny metal.

I'd certainly try to straighten it, if for no other reason than to have an emergency spare.

Many thanks Dave! I couldn't have gotten this done without your generosity!











Confirmed with this with my parts bin. Was there ever even a 14t second position Winner cog?

14t Perfect 1st position cog vs 15t 2nd position Winner cog




ps: I do think the Perfect freewheel was a good one to get my feet wet with. It seems about as simple as a freewheel can get. No need to purchase any tools I didn't already have. Wouldn't hesitate to tear apart another one of these.

Congratulations on your successful overhaul and servicing!

Yes, there is a 14T 2nd position Winner sprocket. It would be the smallest one which fits there. On the Winner 2nd positions sprockets, they need an additional spacer (and sometimes a shim) in order to space it correctly (either standard or Ultra/narrow spacing), and this is why you see the difference in your above picture.

Most freewheels are relatively simple to work on. Old Cyclo 64 models are the most challenging. Regina (prior to CX, CX-S, and BX) models are challenging due to their "flag-post" pawls and wire springs, which make re-mating the body halves challenging.

Shimano, Suntour, Maillard, Atom, Sachs, and the newer Regina models, are all straight forward and basically present no challenges.