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Odd frame
- Thread starter petritl
- Start date
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did only the wz frames have the brake arm exstension?i thought they had frame damage at first thats why they redid the wz frames,so if this is an early frame it coulda been a whizzer,the early probuction stuff is subject to change,even today we have recalls just my thoughts
bikewhorder
Riding a '38 Autocycle Deluxe
Pretty sure mine is a genuine WZ Schwinn.
whizzer_motorbike_fan
Finally riding a big boys bike
Top indent
Bottom indent
Both
Can someone post what an early factory WZ Looks like?
To me this looks like it was dimpled by a whizzer dealer to make clearance for the belt which they often did. It doesn't look like it was done by schwinn.
petritl
I live for the CABE
It doesn't really matter to me one way or another but it may explain the differences between the clearancing ; I'm going to build this frame up with a Whizzer engine and parts from a Whizzer powered DX Schwinn bicycle that was difficult to sell.
Per the Angelfire website:
The Whizzer engine became so popular that several manufacturers produced a bike intended for mounting the Whizzer engine kit. The 1947 Schwinn WZ507 bike (later designated S4) was a variation of the Schwinn cantilever frame patented in 1937.( The term "CANTILEVER" indicates that the frame has two lower top tubes, which run all the way from the head tube, cross the seat mast, and continue down to the rear drop-out.)The welds were heavier, and spokes were .105 inch diameter as opposed to the .080 inch standard gauge. The earliest ones (WZ) have the inside of the rear seat stays and chain stays pressed flat for belt clearance. On the later ones, the stays are dimpled, and there is a welded on brake arm anchor point, which is then connected to the brake arm by a strut. Seems the coaster brake sometimes tore through the standard bicycle type strap, and in some cases bent or cracked the frame, so a welded on anchor point was provided.
I just bought a green 1940's Schwinn Whizzer that has the exact same dimples as your bike. I think these are factory dimples that predate the WZ bikes. I also posted some pictures of a red whizzer frame, again with the same exact dimples. If these were homemade crimps, each bike would have different tooling marks. I do not think that these bikes are a freak coincidence.
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