Gert

My aerotrim has been stuck on not drilled for over 30K Km and not been a problem

Also MRA do a clip on attachment

Make one out of sheet alloy to locate on the holes to the original spoiler?

Could be an interesting test.
How do you loosen the original spoiler?

I have been thinking on this too. My idea was to fit it using the two screws that hold the spoiler now and use them to connect from the undersite an extra fairing out of macrolon.

Have some flat sqare macrolon lying, so that is one reason, besides it's uv stability and resistance to vibrations. Planning to heat it on my stove and mold it to fit the inner front fairing. I fairing of about 3 to 5 cm would do the job I think, at a slightly more upright position.

The other is that I would like to be able to return to original without holes or missing parts after some time.

Well, that is the idea, now the time and the fiddeling of it.

Pics or experience would be welcomed. Reply here or mail me.

So only 2 screws, eh.
Sounds very doable.
But I guess you also need a steeper deflection of the lower screen,
like the lip G has in his love thread.
Or would just a bit bigger and more straight up spoiler do it?
Wouldn't that wind hit the same spot but w higher velocity?

you lot are making this difficult - whats wrong with taking off the standard spoiler and swapping it with a clear Clip on MRA Xcreen ?

If you like it then spray paint the Xcreen red and permanet mount it - if you don't stick it up on fleabay and you've only lost max €30 and not permanently damaged anything

I`m just speculating freely as I don`t know much bout this.

Can you give us a pic of your setup?
How tall are you?
And could you tell us exactly what you bought, is it the Xscreen w the tension clamps
http://www.mra.de/en/x-creen
or what?

On dimenions I keep an eye on the lip up spoiler as was available for the 750 and 906 series, just some 5 cm high and steeper upwards. . . . . See previous pics in this posting.