I have about a ten year old set of the largest Rino's, and within their limitations, they work fine.
I personally prefer a trolley jack and jack stands, but starting with the '04 Jaguar and '04 GTO, those cars (and the Solstice and the G8) were (are) just too low to the ground to get my trolley jacks under.
As noted, on smooth concrete, they will slide. I had an area of concrete in the floor of my little car shop roughed up to stop this. Second, the vertical height is not that great. With modern cars with 17 and 18 inch wheels, it's not that bad, there is room to get under the car on a creeper. But on older cars, like my '94 Jaguar that has only 16 inch wheels, and sits really low on them, it can get tight. I still prefer to just use a couple of trolley jacks and stands on that car. Third, if you need to do brakes or something that means wheel removal, you still have to have a trolley jack and stands to get the car up off the ramps. Fourth, if the car don't move, it ain't going up on ramps.
Even with the V12 Jaguar, I've never worried about their weight limitations. I've never felt the need to put a secondary set of support under any car when it's on the Rino's. I do chock the back tires, however. I've personally seen metal ramps buckle and I would never trust those without a secondary means of support.
When I build my next shop, I think I will go with a post lift.
I personally prefer a trolley jack and jack stands, but starting with the '04 Jaguar and '04 GTO, those cars (and the Solstice and the G8) were (are) just too low to the ground to get my trolley jacks under.
As noted, on smooth concrete, they will slide. I had an area of concrete in the floor of my little car shop roughed up to stop this. Second, the vertical height is not that great. With modern cars with 17 and 18 inch wheels, it's not that bad, there is room to get under the car on a creeper. But on older cars, like my '94 Jaguar that has only 16 inch wheels, and sits really low on them, it can get tight. I still prefer to just use a couple of trolley jacks and stands on that car. Third, if you need to do brakes or something that means wheel removal, you still have to have a trolley jack and stands to get the car up off the ramps. Fourth, if the car don't move, it ain't going up on ramps.
Even with the V12 Jaguar, I've never worried about their weight limitations. I've never felt the need to put a secondary set of support under any car when it's on the Rino's. I do chock the back tires, however. I've personally seen metal ramps buckle and I would never trust those without a secondary means of support.
When I build my next shop, I think I will go with a post lift.
