Use a velcro strap to tie the hoop on the windshield to the hoop on your hood (that's why it's there). It stops your windshield from bouncing around.
If you plan to offroad with the windshield down, you'll want to get additional roll bars so you don't make your head into a mound of red goo if you flip. I bought the
Rock Hard bolt-on roll cage specifically for that reason.
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