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Wartime Schwinn New World Bikes - We Know You Have Them - Tell Us About Them!!

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Yes very much like to have blue fenders and thanks for offering to check your parts boxes. Tips on shifter are time savers for me sir !
The “snowflake” sprocket is 52 tooth. It seemed to match up to a 70’s Sugino Bmx ring but my vintage bike knowledge is on an upswing at best here !
 
Yes very much like to have blue fenders and thanks for offering to check your parts boxes. Tips on shifter are time savers for me sir !
The “snowflake” sprocket is 52 tooth. It seemed to match up to a 70’s Sugino Bmx ring but my vintage bike knowledge is on an upswing at best here !

Take a careful look at it when you pull apart the bottom bracket. The snowflake style was used by many different manufacturers over many years. See if the condition and plating match other parts.
 
Take a careful look at it when you pull apart the bottom bracket. The snowflake style was used by many different manufacturers over many years. See if the condition and plating match other parts.

The snowflake style is different with diamonds and these are Schwinn 5-Pentagon rings. The 52T has a better looking pentagon.

1736469685516.png
 
The 5 pin crank as opposed to the sprocket being factory press fit to the crank arm seems more like a Paramount thing to me. The blue bike has just a standard one piece crank...so even with Schwinn there is a lot of variation.
 
I am inclined to think the sprocket is not original on the blue bike. The plating looks different from the rest of the bright work, and the owner thought it matched a later Japanese-made sprocket. A replacement also would be consistent with the bike's reported use as transport for a bike shop. When taken apart, it's worth seeing if there are any marks on it. It's larger than most of the sprockets seen on New Worlds, which tended to be 46 or 48 (24 skip) tooth.

If you look very closely at the one drive side photo, it looks like the chain guard has been pushed forward to accommodate the larger replacement sprocket. There's a mark on the chain stay right behind the clamp for the chain guard where it looks like the chain guard was originally mounted. They had to shift it forward for the larger sprocket.
 
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I am inclined to think the sprocket is not original on the blue bike. The plating looks different from the rest of the bright work, and the owner thought it matched a later Japanese-made sprocket. A replacement also would be consistent with the bike's reported use as transport for a bike shop. When taken apart, it's worth seeing if there are any marks on it. It's larger than most of the sprockets seen on New Worlds, which tended to be 46 or 48 (24 skip) tooth.

If you look very closely at the one drive side photo, it looks like the chain guard has been pushed forward to accommodate the larger replacement sprocket. There's a mark on the chain stay right behind the clamp for the chain guard where it looks like the chain guard was originally mounted. They had to shift it forward for the larger sprocket.
I agree. If you want to confirm, you can check for marks in the paint on the downtube to see that the guard has been moved there too. The chain guard clamp on mine preserved the gold pins between roughly 2" and 2-3/4" from the BB shell.

PXL_20250110_164745882.jpg


Also, here are the versions of the snowflake sprockets I have.
PXL_20250108_202841775.jpg
The 62ish Schwinn Tandem arm and sprocket up next to the AS&CO shows the webbing to be wider on the AS&CO. The tandem sprocket is marked Made in England 46t, while original equipment was not made by Schwinn at that point, obviously.

I'm not sure of the origins of these two, but they are both for 1/8" single speed chain. Left is 48t, right is 44t.
PXL_20250106_194442956.jpg


Lastly, I have this 3/32" NOS Nervar Made in France 52t sprocket that most resembles the one on the blue bike in terms of the length of the sides on the pentagonal shapes. And it's laid over the 48t and 46t for comparison.
PXL_20250108_203512158.jpg
 
Here are the witness marks on the frame from prior clamp positions. The rear guard bracket appears to be shifted forward as suspected however the front bracket appears to have been moved down.


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There is no bevel on the outside of this known 70’s Sugino Bmx ring here so I retract that prior statement regarding a match.
1736611791494.png

The Blue bike chain ring in question has the bevel like the other prewar examples posted above by @WillWork4Parts 😎
1736612023544.jpeg
 
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@Sportyworty can you please take a pic of the bottom bracket with serial number? This bike's serial is next to mine on the chart and is the only H7XXXX on the list. Pics of the 3-speed hub and any markings it has? More pics of the entire bike would be nice too if possible. There is only one pic of it so far.
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You are getting close to having this bike rolling again! Great to see another well equipped prewar New World on the road. 🤩
 
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The 1940 part catalog has a dished 52T chainring listed for New World & B Models but there is no "photo" of it so I don't know if it was a snowflake style.
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1941 Catalog Page for New Worlds - Model W1MSC has the one piece crank with 3-speed Sturmey hub:

1941 Schwinn New World Catalog Page.jpg
 
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