52 Tooth Sweetheart Sprocket

[blakekennedy]

Looking for some information on the very rare 52 tooth sweetheart sprockets. They seem to be kind of an anomaly.

I recently picked up a parts bike with one and had to do a double take to make sure I was seeing things right. I attached a picture of my bike and sprocket, as well as a nice B6 that made it’s appearance here on the CABE as well. That bike was a 47/48. I’ll post that thread below. My bike had S2s, but couldn’t make out a serial. I assume it’s around a 48/49.

Thread '1948 Schwinn Project Journal'

May 23, 2022

This is my first restoration of a classic. I'm a design engineer for a retail display company, bicycle enthusiast and experienced mechanic. This Schwinn isn't mine, I'm restoring it for my friend, who has owned this bike since he was 13 years old. His Pop bought it for him at JCPenney after much begging - and then made him work it off on Texas oilfields in the late '40s. He will be making the big decisions on this project and he will be watching here, too. I welcome input - I will likely be asking a lot of questions. I like collaboration and I want to do a good job with it. Thanks to all...

• Gimletbikes
• Replies: 91
• Forum: Project Rides

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Any information appreciated. Thanks!

 

[Frank & Pam (SKIDKINGS)]

Those are tough to find. I remember someone a while back looking for one for a late prewar. So I "think' ( theres my first mistake) that it was equipped on the higher end late prewar Schwinns and would explain how a few got out early postwar.

 

[speedy]

  looking at that bicycle with A52 tooth sweetheart's bracket half inch pitch, I'm just a little jealous.
I wish I had one of those fifty two tooth chain rings!