Heat shields-R75/5

Have acquired a set of used Krauser bags and mounts for my '72 R75/5 toaster. The muffler sits perilously close to the bottom of the bag, as in, "will it melt when run"? Any thoughts or resources for heat shields for the bottom of these bags? Thanks.

103947 said:

Have acquired a set of used Krauser bags and mounts for my '72 R75/5 toaster. The muffler sits perilously close to the bottom of the bag, as in, "will it melt when run"? Any thoughts or resources for heat shields for the bottom of these bags? Thanks.

Click to expand...

Hmm---there should be an inch or so of free air space between the muffler and bag. If there's not, one or more somethings are bent, saggy, etc. I've seen heat shields (Luftmeister?) attached to the mufflers that cover the conical, forward end of airhead mufflers, and that prevent the rider's shoe/boot heels from melting, but I haven't seen shields that extend back far enough to prevent hot contact with the saddlebags' bottoms.

Just a general question...were Krausers equipment for /5s? I kinda thought that these bags showed up a bit later. If so, that might be why they're so close...plus you have a short wheel base (SWB) which likely squeezes things.

-- Update -- Found an old ad from Bob Beach who sold Krauser products from West Germany. One of the small pictures shows a heat shield extended back probably then length of the driveshaft, but not to the final drive. Clearly not long enough to cover all the way under the bag, though. Found this post and this basically looks like it:

https://forums.bmwmoa.org/showthread.php?74387-Exhaust-heat-shields&p=954851&viewfull=1#post954851

I think Kurt is right and those are newer bags than your model. One solution that is used on my 1100RT is a heat shield pad that BMW installs on the bottom or the oilhead system bags on the exhaust pipe side. It's a stick on part and can be ordered as a replacement. Go to the MAXBMW parts fiche and do a search on this number: 46 54 2 316 611

They are pricey for what they are of course but gives you an idea for a simple solution to your problem. What you need is some heat deflection and insulation if you lack clearance for cooling.

I don't think the Krauser or H&B bags were available for /5s initially--I think they arrived during the /6 era. Nonetheless, MAX's fiche shows new ones available now for the R75/5.
https://shop.maxbmw.com/fiche/DiagramsMain.aspx?vid=51885&rnd=07242017 I'd assume that there would have to be a difference between a set of case holders for short wheelbase vs. long wheelbase bikes.

Snowbum's treatise on luggage systems might shed some additional light, as would some knowledgeable staffer at MAX's or Bob's BMW. Figuring out which variant you've got in hand may be problematic, too.

Heat shields R75/5

All good info....thanks.