Originally Posted by
jad3675
I have a Rockbros sucker rack. No complaints - only mod I did was a bit of threadlocker on the bolts. Make sure the roof and suction cups are clean and you shouldn't have an issue. Check the indicators at every stop, though.
I haven't take it on a 500+ mile journey, but I did take it around the I275 loop of Cincinnati - about 90 miles. I stopped once and everything was holding as it should.
They suggest using a silicone spray as an adhesion promoter. I've also seen videos of people using water. Do you use either one of these methods?