Re: [CR] PHOTO proof of threaded 13 Tooth SunTour Perfect FW Cog

(Example: Framebuilders:Tony Beek)

Date: Fri, 8 Jan 2010 07:37:05 -0800
From: "Kevin Kruger" <ktk1_7_0_2_8@yahoo.com>
To: Mark Stonich <mark@bikesmithdesign.com>, <classicrendezvous@bikelist.org>, <jerrymoos@sbcglobal.net>, <johndthompson@gmail.com>
Subject: Re: [CR] PHOTO proof of threaded 13 Tooth SunTour Perfect FW Cog


OK, you made me do it, even though I didn't want to.

Spun off the outer 13 TOOTH cog from the SunTour "Perfect" bodied freewheel, and it is actually threaded to the body, not piggybacked or threaded to the next smallest cog as thought.

So SunTour did make a 13 TOOTH cog that threaded directly to the body.

Proof is in the pudding, or in the photos found at the following Wool Jersey location:

http://www.wooljersey.com/gallery/Kevin-Krugers-Bikes/13ToothSuntourCog/

Hopefully seeing is now believing!

Regards,
Kevin Kruger - Grantville, PA


--- On Fri, 1/8/10, Mark Stonich wrote:


From: Mark Stonich <mark@bikesmithdesign.com> Subject: Re: [CR] 13 Tooth SunTour Perfect FW Cog To: "Kevin Kruger" <ktk1_7_0_2_8@yahoo.com>, classicrendezvous@bikelist.org Date: Friday, January 8, 2010, 12:16 AM

At  1/7/2010 06:08 PM -0800, Kevin Kruger wrote:

Just to clarify, the Perfect freewheel that I have is a six-speed standard spaced model, that appears to have the 13T cog threaded into the second smallest cog, like the Winner design.

Now that changes everything. 

Too bad they didn't do this make Ultra spaced 7 speeds on Ultra 6 bodies.   Would have made for better touring FWs than the New Winners with only two splined positions and a largest threaded cog of 21t

But it is clearly a PERFECT stamped model body, so a blanket statement about them cannot be made.

I was careful not to state that you didn't have a FW with a 13t and a standard Perfect body, just that one couldn't screw onto the standard 44mm threads.

 That's the point I guess I was trying to make.

And no, I am not going to dismantle this freewheel to prove it.

If I ever get my hands on one it's coming apart, so I can get a look at that 2nd cog. 

Which cog has the male threads?  (ie, does the 13 screw into #2, or onto, like a New Winner.)

  Trust me, my eyes are seeing correctly.

No doubt.

Regards,

Kevin Kruger - Grantville, PA

===========================================================================================

It would be just barely possible to make a 13t cog that could screw

onto the 44mm threads of a non-PC-6500 Perfect or Procompe FW, But

you wouldn't be able to use a chain on it.

  I just wrapped a chain around a 13t cog and there is only about 2-3

thousandths clearance when placed on the threads of a Pro Compe

body.  You need to have some sort of flange or spacer and the chain

would never clear that.

BTW If someone does need a 13t 5 speed New Winner cog, I have one

with very little use.

At  1/7/2010 07:32 AM -0800, Kevin Kruger wrote:
>Dave and other interested listmembers.  It was stated on the list
>that a 13 tooth cog was not available for the "Pro Compe" or "8.8.8"
>bodies.  Well I have a SunTour "Perfect" freewheel, which I think is
>the same as the "Pro Compe or 8.8.8." body, and it has a 13 tooth small cog.
>
>I'm not a SunTour freewheel body expert, so you may want to query


>the list for a confirmation in the ProCompe/Perfect
>compatibility.  If the bodies are the same, then you may have some
>luck finding a 13 tooth cog, as previously stated, I have one on a


>"Perfect" bodied freewheel.
>
>Best of luck with your search!

Mark Stonich;

   BikeSmith Design & Fabrication

     5349 Elliot Ave S. Minneapolis, Minnesota 55417 USA

          Ph. (612) 824-2372 

http://bikesmithdesign.com

http://mnhpva.org

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Mark Stonich;

  BikeSmith Design & Fabrication

    5349 Elliot Ave S. Minneapolis, Minnesota 55417 USA

         Ph. (612) 824-2372 

http://bikesmithdesign.com

http://mnhpva.org

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