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Riddle me this racing aficionados
- jwonder
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Riddle me this racing aficionados
I was browsing around the Internet yesterday and I came upon this very strange rear end suspension configuration on a plunger frame. I am wondering if this is an "official" racing suspension or just something someone put together. I still don't fully know how it is working from the pictures but I am studying them more!
Vice President, Vintage BMW Motorcycle Owners
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Long Island, New York
- schrader7032
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Re: Riddle me this racing aficionados
'78 R100/7 '69 R69S '52 R25/2
Fast. Neat. Average. Friendly. Good. Good.
- caker
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Re: Riddle me this racing aficionados
Some (early?) plunger final drive cover castings did have a cast-in boss to accept a suspension friction damper? ... I don't know too much about it - perhaps a holdover from the prewar R51 racing era, or perhaps BMW had intentions of making the damper part of production but was later abandoned...
Before I post your own pic back here as an example of the boss, you have a picture of one that you sent me a week or two ago
![Smile :)](./images/smilies/icon_e_smile.gif)
-Chris
- jwonder
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Re: Riddle me this racing aficionados
Vice President, Vintage BMW Motorcycle Owners
2022 BMW Friend Of the Marque
Long Island, New York
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Re: Riddle me this racing aficionados
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Re: Riddle me this racing aficionados
jwonder wrote: ↑Wed Feb 03, 2021 6:31 pmHello,
I was browsing around the Internet yesterday and I came upon this very strange rear end suspension configuration on a plunger frame. I am wondering if this is an "official" racing suspension or just something someone put together. I still don't fully know how it is working from the pictures but I am studying them more!
inzerce_zoom_343342.jpg
inzerce_zoom_343347.jpg
inzerce_zoom_343349.jpg
- jwonder
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Re: Riddle me this racing aficionados
I like that friction damper. I could build one of these fairly easily. Hmmmmm.
Vice President, Vintage BMW Motorcycle Owners
2022 BMW Friend Of the Marque
Long Island, New York