2 replies [Last post]
uli
uli's picture
 Offline
VBMWMO #8888
Joined: 04/01/2015
Posts: 2

I bought a R51 ( eng number 504770) many years ago that was supposed to be fully restored.
It wasn't , and lay in the back of my shed for years.
I got inspired to fix it and upon sandblasting the frame found it to be trashed.
I am now after another frame (original or replica) and was hoping one of the members might be able to point me in the right direction.
I am located in NSW Australia.
Thanks

__________________

Uli

Darryl.Richman
Darryl.Richman's picture
 Offline
VBMWMO #6285
Surf City, USA (Santa Cruz, CA)
Joined: 10/27/2006
Posts: 2185
Any frame from the prewar

Any frame from the prewar plungers will work for you: R51, R61, R66 and R71. If you're just looking to build a rider, you can use a Russian M72 frame or even one from an older Chinese Chang Jiang CJ-750.

Do you know if your frame is original with the engine? BMW's Group Classic Archives may be able to tell you (info.group​archiv@bmwg​roup.com). If it is, I would find a way to retain it, as it very much increases the desirability and value of your bike.

__________________

VBMWMO Webmaster,--Darryl Richman
http://darryl.crafty-fox.com

uli
uli's picture
 Offline
VBMWMO #8888
Joined: 04/01/2015
Posts: 2
Thanks for the reply. I don't

Thanks for the reply.
I don't know if the frame and engine match.
The steering head has broken several times and fixed with an awful gusseting welding job.
The two main down tubes appear to have corroded and were simply body filled and painted.
I couldn't find a frame number but the receipt I have says the frame number is 85232 which does not make sense.
One of my machinist mates says he could graft a new front section onto the old frame if I can find one.

Cheers

__________________

Uli

Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.