[Thomas]

Hi Paul! With your information about the estimated power the bike finally passed. At the first day the engineer set the maximum load to 90kg! I told him that I then drive the bike illegally because I weight 10kg more and asked if the bike is only made for dwarfs. After a second day (I spent around 10 hours overall) he found that the bike weights 190kg (not 170kg. including a full tank and on-board tools). He did not even run it but then set the maximum load to 150kg. He told me something about the frame size and tube diameters but it was quite clear that he wasn't sure about it. No surprise without information about the steel material and the wall thickness. On my comment that this bike is designed for side cars he said that this has nothing to do with the maximum possible load. When I rolled my eyebrows he quickly mentioned that it has some influences, of course... I told him that common sense often helps but I was not too eager for a debate anymore. Maybe the legendary German engineering somewhat degenerates... 
Cheers, Thomas

[Thomas]

Thank you, Paul! Tomorrow I will be at the registration office and if they need an official confirmation I will come back to you.
Cheers, Thomas

[phutton]

Hi Thomas,

We regularly get this enquiry from members in Germany and Austria. You are quite right - the power output of these machines is not quoted anywhere in Marston literature, but we normally advise 20bhp (15kw) for the later M9s. I can provide confirmation of this on MSC&R letterhead if you need it.

Paul

[Thomas]

Hi all! Can anybody tell me the machine power of the 1937 Model 9? Is it 20 hp or 22? I need that for the registration and it is not written in the papers.
Cheers, Thomas