MOTOBRICK.COM

TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: matjas on October 14, 2024, 01:57:36 PM

Title: k75 crash bars set/kit
Post by: matjas on October 14, 2024, 01:57:36 PM

Hi Guys
I have just acquired cheaply a set of k75rt crash bars. the kit seems to fit and came with ALMOST all of the mounting materials. ALMOST - I am missing the TOP parts that come at the top engine mount.
from my memory that would be a M8/M10 silentblock? can someone post a picture how this one really looks. I believe this is not available from BMW anymore.
I dont want to use a rigid mount I could fabricate as in case of some more substantial crash at any speed there might be damage to the engine block.
Do you have a picture on your hand somewhere?
Best regards
matjas

Title: Re: k75 crash bars set/kit
Post by: frankenduck on October 14, 2024, 02:57:07 PM

This part?


(https://shop.maxbmw.com/fiche/NotesParts/46712303070_3_B.jpg)


The original part is not available but has been superceded:
https://shop.maxbmw.com/fiche/PartsSearch.aspx?&searchtype=undefined&parts=46712303070%0A46718554872%0A


There are generic replacements available. Search for 9217K46 at https://www.mcmaster.com/

Title: Re: k75 crash bars set/kit
Post by: matjas on October 14, 2024, 03:55:43 PM

Sorry. I just made a photo of what I have. I have 4 of these.
Issue is how do I attach the top of the crashbar to the engine.
In k1100 I remember there was a nut deeep inside the top of the bar so I am guessing there must have been a bolt sticking out.

Title: Re: k75 crash bars set/kit
Post by: frankenduck on October 14, 2024, 04:19:22 PM

You need to replace the front frame-engine bolts with bolts like this:
(https://cdn4.volusion.store/2b95c-ejoz3/v/vspfiles/photos/EngBolt080-2T.jpg)


The rubber dampers screw into those.

Title: Re: k75 crash bars set/kit
Post by: matjas on October 15, 2024, 03:05:22 AM

Thanks mate. Will try to cook something like this.
Worst thing is that to fit the silentblock left/rear the silencer needs to go out. I have nothing but bad experience with touching old header studs /:

Title: Re: k75 crash bars set/kit
Post by: triplek on March 17, 2025, 11:30:13 AM

Quote from: frankenduck on October 14, 2024, 04:19:22 PM

You need to replace the front frame-engine bolts with bolts like this:
(https://cdn4.volusion.store/2b95c-ejoz3/v/vspfiles/photos/EngBolt080-2T.jpg)


The rubber dampers screw into those.

Are these frame anchor/bolts available from McMaster Carr - or are these proprietary and hard to source?

Title: Re: k75 crash bars set/kit
Post by: sooprvylyn on March 17, 2025, 01:58:45 PM

Proprietary....you can sometimes find em on ebay or from oem parts suppliers.