Re: [CR] 13 Tooth SunTour Perfect Freewheel Cog was available

(Example: Production Builders)

Date: Thu, 7 Jan 2010 20:02:41 -0600
To: <classicrendezvous@bikelist.org>
From: "Mark Stonich" <mark@bikesmithdesign.com>
In-Reply-To: <645653.75506.qm@web31408.mail.mud.yahoo.com>
References: <645653.75506.qm@web31408.mail.mud.yahoo.com>
Subject: Re: [CR] 13 Tooth SunTour Perfect Freewheel Cog was available


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