1/2 ND cog width?

[ian]

Hey Cabers. I just installed an ND 1/2 pitch cog and the chain that's on my '53 Columbia will not mesh with it. I'm thinking that maybe it's wider/thicker and won't allow it to completely seat (?).
Any ideas?

 

[fordmike65]

Some Westfield & CWC built bikes used wider(3/16) x 1/2 chain.

Cwc Heavy Duty 1/2" Pitch? | Classic Balloon Tire Bicycles 1933-1965

Picked up this '41 Roadmaster recently from a fellow Cabe member specifically for the Coaster's CWC. While putting it back together(the night before the ride of course), I found that I had misplaced the chain. Unfortunately it was 1/2" pitch, so I'd have to borrow a chain off my Monark or SamSco...

thecabe.com

 

[ian]

Some Westfield & CWC built bikes used wider(3/16) x 1/2 chain.

Cwc Heavy Duty 1/2" Pitch? | Classic Balloon Tire Bicycles 1933-1965

Picked up this '41 Roadmaster recently from a fellow Cabe member specifically for the Coaster's CWC. While putting it back together(the night before the ride of course), I found that I had misplaced the chain. Unfortunately it was 1/2" pitch, so I'd have to borrow a chain off my Monark or SamSco...

thecabe.com

Thanks @fordmike65. That should help.

 

[ian]

The Columbia chainring is thinner than the cog. I'll get a new chain coming from the interweb........

 

[catfish]

They came in two different widths.