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Discussion Starter #1
It is my plan to combine what I consider the 2 best windshields into 1. The MRA Vario and the Givi. I intend to install the adjustable lip fron the rather narrow MRA Vario on the much wider Givi, creating the ultimate windshield. I have both, and believe combined are the ultimate answer to wind/buffeting protection, along with my Madstat, of course. My Question...How do I drill holes in the Givi without destroying it? Has anyone done this. Or what kind of shop could do it for me? I will post pics of the finished product and a ride report when it is all done.
 

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I bought a used Givi to do the same thing, but I haven't decided which spoiler to buy yet. Not sure what to tell you about drilling into the Givi, but if whatever you do works, let me know!
 

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The windshield should be pretty easy to drill into. A drill bit with a centering tip can be had at any big box hardware store. That and a slow and steady start with a drill. Prop the shield with old towels or the like under it to keep it stable.
Good luck.
 

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The windshield should be pretty easy to drill into. A drill bit with a centering tip can be had at any big box hardware store. That and a slow and steady start with a drill. Prop the shield with old towels or the like under it to keep it stable.
Good luck.
DO NOT DO THIS. If you use a standard bit, it will grab and crack the windshield.

Drill bits for plastics have a different included angle from the general purpose bits sold in most stores. If you are a very careful man, you can drill a tiny pilot hole and then drill it out in steps to the correct diameter.

Or you can buy the proper tool - plastic bits - at a plastics supply house. There are more around than you'd think.

Or grind the tip to the correct angle.




...Or buy a CalSci and be done with it.....
 

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I solved my windshield proble

Its on a shelf in the garage

Helmet buffetting solved.


National something makes a windsheild that is suposedly better

It is formed and has cut outs that allegedly move the vortexs to the side.
 

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+1 for what Garandman said. Use the right tool for the job. This job can be made easier (more likely to work) for noobs if the shield is held down to a drill press table. The drill press gives you more control over the bit, which will prevent it from trying to dig in too deep when cutting. Alcohol can be used as a lube, which will also stop the bit from grabbing. Spray it on or build a dam from putty around the hole and fill with alcohol. Cut slowly at slow speed.
Having said all that I think you should try the combination of the two out using industrial velcro before you actually drill that Givi. You are combining two separate airfoil systems, and although they are good alone, there is no guarantee they will be better when combined.
 

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How easily would a soldering iron push through the screen? Not sure if this would leave a clean hole or if residue from the iron would "messy" it up.

Any thoughts?
 

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Try putting some masking tape over the area you want to drill, then use "very" light pressure on the drill bit so it doesnt grab, and shatter the screen.
 

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Discussion Starter #10
.

"Drill bits for plastics have a different included angle from the general purpose bits sold in most stores. If you are a very careful man, you can drill a tiny pilot hole and then drill it out in steps to the correct diameter.

Or you can buy the proper tool - plastic bits - at a plastics supply house. There are more around than you'd think"
.


I have already sat the spoiler from the MRA Vario on the Givi, the lay of the adjustible bracket sits perfectly on the Givi, as the curvature of the upper portion of the 2 windshields appear to be identical. Thank you for the suggestion on the plastic drill bits. I think I will inquire if a plastics supply house will actually agree to drill the holes for me. Confession time, the reason for my question,I have already destroyed a brand new Givi trying to drill the first hole, using a conventional wood bit. Figured it would be easy...the windshield cracked almost immediatly. Not one to give up on what I believe is a good idea, I am trying again
 

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I am watching this thread with great interest as I bought a used Givi to do the same thing. One thing I am stuck on is which Vario spoiler to get as they sell just the spoiler, but in different lengths, and I think different radius.

I used Vario's method for measuring, but the Givi seems to have a radius that doesn't accomodate any of the available spoiler sizes.

If you are saying the spoiler from the Vario screen fits the Givi, all I need to do is find out which spoiler is on the MRA Vario screen. I wonder it they'd respond to an email?

Erik, which MRA Vario screen do you have? I know they make a few different heights for the vstrom, so maybe the spoilers are different; but probably not.

--jason
 

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Discussion Starter #12
Erik, which MRA Vario screen do you have? I know they make a few different heights for the vstrom, so maybe the spoilers are different; but probably not.

--jason
I have the 20" Vario screen, the size is perfect for the givi, as they are close to the same width at the top, where the spoiler attaches, with Givi being much wider at the bottom.
 

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I did this mod....:thumbup: without the Givi, this time last yr..

I have the MRA touring with lip, and added extensions on either side using lexan. I made small brackets to attach it and small rubber grommets where the brackets meet the shield and side extensions.

The shield is as wide as the fairing at the bottom and several inches wider at the top.

With the madstad I can move the windshield in a couple ways to create buffeting (I never had any to begin with) but in all other areas it's incredible, especially riding in cold and or wet weather. With certain windshield angles I can ride in heavy rain with my visor up and my glasses won't get wet. :yesnod:

I can remove the extensions in a few minutes, but there's no way I would.

Can get pics if needed...

Ken
 

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I did this twice. Hold in place, straight, mark the hole location from the inside with a Sharpie, drill the holes with drill bit one size over size of the screw o.d. No special drill bits, no big deal. Just do it.
 

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I will try and get some pics tomorrow to show.

I used cardboard to mark the shape of the contour of the MRA shield and to curve the exterior for a full lock to lock turn with handguards. Used 2in masking tape, cut with jigsaw with tape still on, used file and sandpaper to round and smooth the edges. Drilled lexan with "regular bits" using masking tape to identify hole position.

pics are worth a thousand words.. I'll get some posted.

Cheers,

Ken
 

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A good alternative to finding the specific plastic bits is to use one of the stepped drill bits available at any home improvement store. They only have a single cutting edge, so they do not grab and crack the plastics like normal drill bits will.

Another advantage to these bits is the fact that the next "step" up on the drill bit can be used to give a slight radius to the hole as well. Gently drilling from both sides will leave a factory looking hole without any burrs.

The step drill bits are also excellent for any sheet metal, as they do not distort the hole or "grab" as the hole is drilled.
 
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