Original Schwinn Marman twin engine motorbike

[pedal4416]

The Whizzer specific DX frame was for the “Whizzer Special” it features dimples, chain tensioners, and welded on motor mounts for the Whizzer engine. I have a 51 Whizzer special frame.
The Marmon, Jack and Heintz, and Monark super twin engines seem to fit best on DX style and Monark frames.

 

[kentercanyon]

http://berwynhistoricalsociety.org/wp-content/uploads/pdfs/2004-Past-Times-Spring-Vol-25-No-1.pdf

A very short memoir about a boy who wanted a motorbike, and so gets a paper route in the 1940's Chicago winter to earn the $200.00 to buy his Marman Twin. Has a blurry photo of the happy boy on his gleaming motorbike. Oh, to be this happy again.

 

[56 Vette]

Cool find, been down this road a while back with a bike my dad picked up. His had all the goodies minus the motor. From talking with a few cabers and gentlemen at a few different swap meets, the WZ frame was believed to be cantilever for the whizzer, and the MP97 frame was a dx style for the Marmon kit. Of course the brochure picture posted only shows the cantilever frame, but would have clearance issues if used for the Marmon motor. Would be interested in seeing you motor mounted in that bike. Best of luck Joe.

Schwinn MP97 24" Marman Twin | Motorized Bicycles

Hi all, my Dad picked up what I believe is a 48 Schwinn with a Whizzer kit, however, the motor mounts and tank just don't seem to fit with Whizzer. It has 24" Schwinn tubular S2 rims with no knurling, Schwinn fore brake, non locking fork, wide Mesinger seat, Whizzer controls, correct looking...

thecabe.com

 

[Freqman1]

Looks like all the pics I see have the Marmon mounted in a DX frame. Looks like a typical case of where the advertising was ahead of the product. V/r Shawn

 

[mrg]

Just checked my DX " Motor " frame and it has a B ser # on the dropout and no other marking so post 52, not sure how long they made them?, always thought the dimples were factory but have a slight line in them and know some shops made them pretty nice with the Schwinn dimpling tool but guess I should post some pics in it's own thread.

 

[skeezer]

Schwinn did build a Whizzer specific DX type frame, in the same WZ type configuration.
I’m not sure what year/s that was, but it was fairly limited.
That advertisement states that both models used B model components.
So my guess,(and that’s all it is) was that both frame types were used, with B model fenders, bearing assemblies etc.