Engine protection bars, K75

[ejressler]

Does anyone out there have the instructions for installing the protection bars on a K75? I am thinking of purchasing the bars, but have no instructions.

[barryg]

Are U buying new or used? If new from dealer they should come with instructions.

[ejressler]

New old stock, with no instructions in the box.

[barryg]

Pretty straight forward procedure. The mounts at the bottom attach to the oil pan. I believe there are plastic plugs, 2 on each side that must be popped out. The two attachment mounts are then bolted in. The upper frame to engine bolt is removed and the new bolt is screwed in to replace it. A special bolt is screwed in that is threaded on both ends. The bars can now be mounted. The bars are inserted thru the fairing vent opening, a small amount of the fairing may have to be trimmed to clear. The K75/100 Clymer manual shows a simple schematic of it. Hope this helps.

[35634]

Since they mount on the sump, it is possible to break the casting if you dump it.
I'd rather let the valve or crank cover take the impact. They're easy to find used.

[PGlaves]

Since they mount on the sump, it is possible to break the casting if you dump it.
I'd rather let the valve or crank cover take the impact. They're easy to find used.

Anything is possible - but this particular design isn't noted for doing that.

[barryg]

I have the bars on my K100RT For 2 reasons. One to mount my hiway pegs for long distance touring. The other is to protect the fairing in a tipover off either stand or a slow walking speed layover. If involved in a real crash the bars the fairing and the oilpan are the least of my concern. And I've had one walking speed laydown in gravel and the bars kept the fairing from taking the full impact. Just a little scuffing around the lower foot area of fairing and a little scuffing where the bars hit the ground. Good luck with your project.

[GregFeeler]

Pretty straight forward procedure. The mounts at the bottom attach to the oil pan. I believe there are plastic plugs, 2 on each side that must be popped out. The two attachment mounts are then bolted in. The upper frame to engine bolt is removed and the new bolt is screwed in to replace it. A special bolt is screwed in that is threaded on both ends. The bars can now be mounted. The bars are inserted thru the fairing vent opening, a small amount of the fairing may have to be trimmed to clear. The K75/100 Clymer manual shows a simple schematic of it. Hope this helps.

The crash bars on the K100 I had with them, and the K75 I have now that has them mount somewhat differently than you describe. The top double-ended bolt actually has a piece of rubber sandwiched in the middle of it. The bottoms on one side mount with little versions of the same kind of double-headed bolt (with the rubber sandwich), and on the other side with a bracket made of two long metal pieces bonded together with rubber between them. The net effect is that both crash bars are rubber mounted like on small car engine mounts. This isolates the bars from some vibration (not much in my opinion), but more importantly allows them to break away and NOT damage the engine in a crash. For example, if either of the top two engine mount points were broken they really can't be repaired as they are also the front frame mount points.

Here's the on-line parts book illustration at Max BMW:
http://www.maxbmwmotorcycles.com/fiche/MainDiagrams.asp?mospid=47906

An here's a screen clipping.

Also - don't forget the special grounding straps that ground the bars to the cases. One is item #20 in the illustration.

[PHMarvin]

Hi,
And don't forget that if you're planning to mount the bars on a K75RT, the RT takes different bars than the basic K75, and there is a bracket which connects the (higher) bars to the top engine mount (#19 in the fiche in Greg Feeler's post directly above this one). This was done so the RT bars go through an already-existing hole in the fairing. Been there, Done that!