A low car cannot use most ramps, and the reason has nothing to do with capacity. It is geometry: the ramp's incline rises faster than the car's front overhang can clear, so the bumper or the front lip contacts the ramp before the tire reaches it. At that point you are either pushing the ramp forward or damaging the bodywork.
The angles, compared
| Ramp | Approach angle | Lift | Ramp length |
|---|---|---|---|
| Race Ramps 56 in + XTenders | 6.6 degrees | 8 in | 56 in plus extension |
| Black Widow 6009-V2 | 9.05 degrees | 2-1/2 in | 27-1/2 in |
| Race Ramps RR-56-2 | 10.8 degrees | 8 in | 56 in |
| RhinoRamps MAX | 17 degrees | Not published | About 36 in |
| Black Widow TS265 | 17 degrees | Up to 3 in | 17.5 in |
The pattern is straightforward: shallow angles need length, and length costs money and garage space. A 6.6-degree approach on a 56 in ramp plus extenders is a serious piece of equipment; a 17-degree wedge fits in a cupboard.
How to check your car before you buy
1.Measure the lowest point at the front
Usually the front lip or the leading edge of a splitter. Measure from the ground straight up to it, with the car on level ground and the suspension settled.
2.Measure how far forward that point is from the tire
Horizontal distance from the front face of the tire to the lowest point. That is your front overhang, and it is what has to clear the incline.
3.Compare against the ramp's rise over that distance
A ramp rises roughly its angle's tangent per inch of length. At 17 degrees, the ramp surface is about 0.3 in higher for every inch forward; at 9 degrees, about 0.16 in. Multiply by your overhang and compare to your clearance. If the numbers are close, you need the shallower ramp.
4.Do a dry test with cardboard
Cut a piece of cardboard to the ramp's profile, stand it against the tire, and look at where the bumper falls. Crude, effective, free.
Workarounds, ranked
- Buy the shallower ramp. Boring and correct. The angle is the problem; a longer ramp is the solution.
- Use extenders. Race Ramps sells XTenders specifically to drop the 56 in ramps' approach to 6.6 degrees. A manufacturer-supported solution to exactly this problem.
- Wedges plus a jack. Skip the service ramp entirely: raise the car 3 in on short wedges and use an ordinary floor jack. See low-profile floor jacks.
- Boards in front of the ramp. A plank laid so the tire climbs onto it first reduces the effective angle. It works, and it adds a second thing that can shift — so it is a last resort, not a plan.
Do not forget lift height
A low car starts closer to the ground, so it needs more lift to reach a usable working height, not less. This is why the shallow-angle budget wedges at 2-1/2 in are a clearance aid rather than a service solution for a low car: you have solved the approach and not the access.