Race Ramps Racer Chock 12 Inch Wheel Chock | RR-RC-5
A Chock That Grips the Tire Instead of Skating Off It: the Race Ramps Racer Chock
Most chocks are a wedge with a flat face. The tire touches it at one line, and on a smooth shop floor the whole thing squirts out sideways the moment the car settles onto it. Then you find it under the workbench.
The Racer Chock is shaped differently. The full 12" width is contoured to follow the curve of the tire and ribbed across the face, so the tire seats into the chock rather than resting against it. Nothing slides, in either direction.
It is solid expanded foam with a traction coating, which is why it holds 1,500 lbs while weighing 2 lbs. You can kick it into place, it will not chip an epoxy floor, and there is no steel to rust a ring into the concrete or gouge a trailer deck.
Buy them in pairs. One chock holds one wheel in one direction. Most people want two per axle, or four to stop a car moving at all in a trailer. Sold individually so you take exactly what you need. Browse the full Race Ramps lineup.

Benefits of the Racer Chock
| Race Ramps Racer Chock Specifications | |
| Manufacturer | Race Ramps |
| Model | RR-RC-5 |
| Type | Contoured foam wheel chock |
| Sold As | Individually, one chock |
| Capacity | 1,500 lbs per chock |
| Dimensions | 10" L x 12" W x 5" H |
| Maximum Tire Width | 10" |
| Weight | 2 lbs |
| Material | Expanded foam with anti slip traction coating |
| Colour | Black |
| Origin | Made in the USA |
| Warranty | 1-year manufacturer warranty | 30-day satisfaction guarantee |
Racer Chock Frequently Asked Questions
How many do I need?
One chock stops one wheel rolling one way. Two, placed front and back of the same tire, hold a car on a level floor. Four is the sensible number for a car strapped in a trailer or parked on any kind of slope. They are sold individually so you buy the number the job needs.
Is foam really strong enough for a chock?
It is rated at 1,500 lbs, which is more than any passenger car corner. A chock is not carrying the weight of the car anyway, it is resisting the car trying to roll, and the contoured face does that better than a heavier flat one.
Will it work on a wide tire?
It is rated for tires up to 10" of section width. On something wider the chock still works, it just does not span the full tread, so use two side by side or call us and we will point you at the right option.
Can I use it in a trailer?
Yes, and it is popular for exactly that. It will not gouge a painted deck the way a steel chock does, and at 2 lbs it does not add meaningful weight to a load. It is a chock rather than a tie down, so it supplements straps, it does not replace them.
Does it slide on a smooth floor?
The base has the same anti slip traction coating as the tire face, so it grips sealed concrete and epoxy. That plus the contour is the difference between this and the plastic wedge that ends up across the shop.
Is it the same as a wheel stop or a tie down?
No. A wheel stop is a fixed parking bumper bolted to the ground, and a tie down straps the car to a trailer. This is a chock, meaning it stops a wheel rolling while the car is parked, being loaded, or sitting in the pits. In a trailer it works alongside straps rather than instead of them.
Questions? Talk to a Pitstop Pro specialist or explore more options.