I rode up the ramp once, a skinny one about 8 inches wide, and I don;'t think I will ever do it again. The rubber just dosn't grab when yo uhit the breaks....and it's the stopping I worried about not the getting up there.
Then, of course when you get to the race track yo uhave three people tugging on your bike helping you get it out of the wheel chock...but darn it's really tight this time...eventually one of them will ask if the bike is still in gear.
Anyway, you should always wratchet strap your ramp to the truck, so it dosn't get kicked out.
...SPEEDING PAST THE LINE OF GOOD TASTE...