Inch pitch freewheel?

[64 Pete]

Hi,
Just wondering if anyone has done this.
Either an inch pitch coaster brake cog that happens to fit some brand of freewheel.
or
By cutting every other tooth off a 1/2" pitch freewheel cog.
Looks like I'd need an older cog with a taller profile.
Possibly two 3/32" cogs sandwiched together so the inch pitch chain meshes better.

I'm trying to keep the inch pitch chainring and chain on an early JC Higgins MTB replica.

Thanks

Pete

 

[sailorbenjamin]

Some of the chicago built Schwinn 10 speeds had 1" pitch cogs on their 5 cog freewheels.

 

[curtis odom]

There is a big difference between inch pitch and 1/2 inch with every other tooth removed, this is not the same thing. Inch pitch is not even a real inch pitch.

 

[Andrew Gorman]

Someone was selling inch pitch cogs to fit a Shimano coaster on eBay, and the ad mentioned that they were also available from Memory Lane.

 

[chris crew]

I cut half of the teeth off of a modern freewheel and run a skiptooth chain on it. Seems to work ok. The modern cog is only about 60% as the old stuff, though.

 

[curtis odom]

Sure, the roller centers are still an inch apart, it is functioning, guess it depends on ones interpretation of "OK"

If this is as much show as go, good on you!

 

[64 Pete]

I cut half of the teeth off of a modern freewheel and run a skiptooth chain on it. Seems to work ok. The modern cog is only about 60% as the old stuff, though.

Chris,
I sandwiched two 24 tooth Suntour cogs together and then ground off every other cog and it fits pretty good.
The old inch pitch chain has a bit of stretch, but still, with 240 pounds of me standing to pedal on a 24/12 geartrain and no problems I'm happy.

Pete

 

[TheSaint]

In 2001 I built my 30"s Shelby Custom with a Shimano Nexus
7spd using a 1" pitch chain.
I had the stock Nexus sprocket professionally
machined to accept the chain. Sure the
sprocket is thin but works just fine.
The front sprocket is a Columbia Coffin
sprocket.
Will post pics later!

theSaint