The concept :
Simple physics : combination chock and retaining plate
- The patented POWERCHOCKTM profile greatly reduces the risk of early departures by causing the tire to wedge into the chock thereby greatly increasing its holding capacity.
- POWERCHOCKTM withstands up to 25 tons of pull-away force with its high-tensile steel and unique multi-point contact restraining system. The weight of the vehicle exerts a direct force on the plate which acts simultaneously to hold it in place on all driverway approach surfaces, even asphalt!