Z-5 RACK

Just installed a Z-5 Bimini Rack on our LSV, It says top speed towing is 45mph, Is this true? How fast can we tow without undressing the canvas ?
Thanks for any help.......David

I saw a supra the other day driving down the hwy at about 70 with it up. I run my regular bimini at 45 when I am heading to gas up and the z5 is way more solid.

i run 65+ with mine all the time on my lsv

Thanks! It seems solid enough, Helps to here fron exsperiance.