Commando compared to BMWr75 etc (2015)

RoadScholar

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A couple of nice looking rides there RS.
Isn't there a law or at least a rule of not allowing Norton mufflers on BMw's?
Norton Type, as they were made with mounting specific to BMW. I got these from EPCO just before their lights began to dim; they really woke up the cam and the 38mm Dell'Orto pumpers, however, they were SO LOUD that even a few H-D riders gave me dirty looks, and, even with a new Arai Corsair V and ear plugs the sound was still way over the top. I replaced them with a pair of Keihan's /6 stainless silencers; open enough to breath, quiet enough to civil.

Best.
 

illf8ed

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I'm no racer but for my type of riding , if I had to keep just one it would be the R90s. Least favorite was the Sportster.

I have to edit this post. This picture was from 2014, I have since sold the Sportster and the R90s. Deep down I guess the Commando was and still is my favorite.

Art
No beemer anymore, but a 2007 XL1200R and three 750 Commandos in my garage. The modern Sportster is very reliable as would be expected. Good on
51693A75-F8BC-434D-A1D8-ECE0A1EBBD6A.jpeg
fairly straight roads and huge torque. For riding fun definitely a 750 Commando on the twisties.
 

storm42

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A BMW dealer friend of mine told me the Germans call the Bikes, Gummikuh which I believe translates to rubber cow. He was in a hotel reception and a woman asked what bike he was riding, when he told her she said Ah Gummikuh.

Can any of our German contingent confirm this nickname?
 

baz

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A BMW dealer friend of mine told me the Germans call the Bikes, Gummikuh which I believe translates to rubber cow. He was in a hotel reception and a woman asked what bike he was riding, when he told her she said Ah Gummikuh.

Can any of our German contingent confirm this nickname?
A mate of mine that lived in Germany for many years told me the same
"The rubber cow"
 

myron1950

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Several years ago, I worked with a Quality Engineer from Opel who was on an international assignment. When he saw a picture of my R75/6 he started gyrating his body and rolling his shoulders like he was on a mechanical bull. He laughed and called the bike a “Gummikuh”. When he stopped laughing he said it was a rubber cow.

haha. I guess I should laugh.
 
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Da hier so viele sprachkundig sind, hier die Erklärung wie die BMWs den Spitznamen "Gummikuh" bekamen:
"Die BMW-Boxer heißen Gummikuh, weil beim Gasgeben das Drehmoment des Kardans dazu führt, dass das Motorradheck aufsteigt. Die Federbeine werden gaaanz lang. Beim Gaswegnehmen sacken sie wieder zusammen. Dieser Effekt machte sich seit der Modellreihe /5 (für Unkundige: Strich Fünf) 1969 bemerkbar, denn das Fahrwerk dieser kompletten Neuentwicklung stammte aus den Werks-Geländesport-Maschinen. Seit BMW Parallelogramm-Schwingen verwendet, bei eine mitfedernden Stütze das Drehmoment aufnimmt, gibt es den Effekt nicht mehr. Übrigens sah es immer schlimmer aus, als es war. Wer kann schon in einer Kurve einfach durch Gasgeben die Bodenfreiheit erhöhen? Übrigens wurden die BMW-Motorräder ab der /5 in Berlin gebaut."

Quelle: http://www.igfkml.de/etc/etc-spitznamen.html

-Knut :)
 

storm42

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Da hier so viele sprachkundig sind, hier die Erklärung wie die BMWs den Spitznamen "Gummikuh" bekamen:
"Die BMW-Boxer heißen Gummikuh, weil beim Gasgeben das Drehmoment des Kardans dazu führt, dass das Motorradheck aufsteigt. Die Federbeine werden gaaanz lang. Beim Gaswegnehmen sacken sie wieder zusammen. Dieser Effekt machte sich seit der Modellreihe /5 (für Unkundige: Strich Fünf) 1969 bemerkbar, denn das Fahrwerk dieser kompletten Neuentwicklung stammte aus den Werks-Geländesport-Maschinen. Seit BMW Parallelogramm-Schwingen verwendet, bei eine mitfedernden Stütze das Drehmoment aufnimmt, gibt es den Effekt nicht mehr. Übrigens sah es immer schlimmer aus, als es war. Wer kann schon in einer Kurve einfach durch Gasgeben die Bodenfreiheit erhöhen? Übrigens wurden die BMW-Motorräder ab der /5 in Berlin gebaut."

Quelle: http://www.igfkml.de/etc/etc-spitznamen.html

-Knut :)
The woman in the reception with my friend gave a side to side fish like hand movement when she called the bikes gummikuh, she wasn't a biker either, so it looks like the public had a different idea to the magazine.

I have often seen early BMWs weaving on motorways, I thought it was what they did (the earlier ones)

I have a 2016 R1200RS, that doesn't weave, in fact it is a very good allrounder, very modern handling.

The singing saw (DKW) is how I think, of all two strokes, horrible things and I hadn't heard the Maggot (CX500) called a Slurry pump before, I like that one.
 
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I have often seen early BMWs weaving on motorways, I thought it was what they did (the earlier ones)
For clarification, the nick-name "Gummikuh" (Rubber cow) does _not_ refer to an alleged weaving tendency. Rather, the airheads /5 and upwards are renowned for holding their line rock-steady. For those in need of a translation, "Gummikuh" refers to the transversal rotation of the tail due to the torque reaction. The up- and downward movement resembles an inflated rubber bag. However, this behaviour is greatly exaggerated (as with most nick-names) and hardly noticeable on the go, according to the cited reference.

-Knut
 

storm42

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I saw that in the article which is why I mentioned the woman's hand movement, I have often seen the BMs weave but never given the up and down movement a seconds thought. It was a long time ago and I know the later bikes don't weave, or go up and down much, I have a modern BM and I would say the handling is very modern. good bike.
 

grandpaul

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Yes, the torque reactions from the in-line crank and driveshaft effects are definitely noticeable on the older models, especially as power increases are added.
 

Scout63

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I stopped noticing the torque reaction years ago. My only misgiving with my /5 is that it sounds like half a VW beetle. Not the greatest sounding mill, especially with a 750 Combat for comparison.
 

grandpaul

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My only misgiving with my /5 is that it sounds like half a VW beetle. Not the greatest sounding mill, especially with a 750 Combat for comparison.
I've always learned to appreciate every bike I've owned, with very few exceptions. I consider myself to be a true all-encompassing enthusiast and not as tribal or "one-trick-pony" as some people tend to get. My greatest hindrance to a lot more riding is still having school-age kids at home, with all the attendant necessities of splitting tasks...
 

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