I recently came back to the BMW fold with my purchase of a low mileage 2003 R1150GS Sport. The screen fitted when I bought it was the OEM unit with a Touratech Wind Deflector attached and for my 5' 8" frame it sucked! The noise blast was too loud and without the deflector the turbulence thrashed my head around inside my Schuberth C3 so I purchased an "unknown" screen from one of the inmates here. I say unknown because he was sure it was for a standard R1150GS but others thought it was for the adventure model. Chalk one up to the clever pants "others" because when it arrived today and I took it out of the box I discovered they were correct. I checked out the price of some new adventure mounts but in doing so I discovered that they don't allow for any tilt adjustment like the standard GS mounts do and besides that they go for around $140 with all the screws and bits. With that in mind I lined up the two to see what kind of differences there were. Up on the workbench I eyeballed the distance and figured the gap was around 3/4" either side for the mount points. Then it was off to the hardware store where I found everything I would need for around $12! Here's what I got: 4 x 3/4" spacers with a couple of 65mm bolts. I pulled all the old mounts off and fitted them to the new screen. Then I used the spacers in place of where the thicker adventure rear mounting block would go. In the next photo you can see a small ridge, the new spacers need to fit over this to help center everything. I used what was the old front screws in the rear (as they are around 3/4" longer) and placed the mounts with the spacers behind them. The spacers make perfect contact on the instrument binnacle the same as the spacer blocks normally do. I guess I could have painted the spacers and maybe one day I will but for the moment they really don't stand out too much unless you are looking right at them. Then it was on with the new screen which I attached to the mounts by using the 65mm bolts at the front and the original tilt adjuster screws back at the rear. The whole thing feels every bit as stable as before and the screen is a lot taller, so much so that in the upright position I have to look through it so I will experiment with the correct angle to see what work best. All in all this was a real cheap upgrade. Job done I say!