It say's to use a soft sponge with plenty of water.................Is that the bottom line , nothing else ?

This will be interesting.

There are many "opinions" on THE best way to clean a wind screen and sometimes a few facts.

The GIVI windscreen products ARE NOT made from Lexan, so anyone who is perpetuating that misinformation is not starting with a fact.

I've used dew, water, windex, Honda cleaner and even spit.

I wash it when I'm washing the bike so use car-shampoo.
However, if it's covered with splatted insects which are now bonded on I get a tea-towel or similar, soak it in HOT water so the material gets hot, wring it out and lay it on the screen for a few minutes.
The insect remains then soften and wash off in the normal way.

I use a soft sponge and cool water, as recommended. Never had a problem getting even the worst bug splatter off.

I suppose one would wipe it dry with soft cloth ?

I have to go to Wal-Dog later , I'll see if I can find one there.

True but experience with screens on my former ride tell me that some are coated with I-don't-know-what and using the wrong stuff on them causes the coating to peel off and render the screen useless.

Indeed, Doug, and the X9 ones.

Last year, Bill (Honda_Silver), Gary (Opalsboy) and I, took a little ride down to south Texas and rode along the coast for a while. Salt water spray and those big juicy Texas bugs got the windshield, and helmet visors and sun glasses so messed up we had to stop to get’m cleaned up. Could not see the darn road any more. We just used drinking water and a clean towel on the side of the road. We got the job done. When I wash the scooter at home, I water soak a big soft towel and put on the windshield to soften the dried crap that was baked on. Then I used some windshield polish on her. Makes the windshield sparkle. Looked good.

This is the stuff I use to polish the Windshield with.

This is the best process I’ve found to remove bugs without scratching the shield and paint after a ride:

1) Spray on 3% hydrogen peroxide on shield and painted surfaces; do not wipe off.
2) Rinse buggy area with water then wash with car soap.
3) Dry with microfiber cloth.
4) Use 210 on the shield; use Honda cleaner/polish on painted surfaces.

For cleaning while on the road I use a warm wet hand size towel and just lay it on the shield then dry with a microfiber cloth. Towels are stored in gallon ziplock bags and used at the next fuel stop.

Here is a good read on windshield care ......
http://www.tulsaenterprises.com/hints.html

I use three different products on my regular GIVI screen (and the same on my Honda screen and my hand-made Home Depot acrylic screen for the Vespa)

1 - water from a spray bottle - works okay, but some guts don't clean up thoroughly

2 - Plexus - spray can I get at boating store. Works great, but it is expensive - about $15 per can. It also works wonders on soft vinyl boat windows.

3 - Pledge - works almost as well as Plexus at one-third the cost.

None have harmed the windscreen in any way that I can detect.