The minimum bumper height is 4.5 inches in vertical height. Maximum bumper heights are 22 inches for passenger vehicles, 26 inches for 4,500 lbs. and under GVWR, 29 inches for 4,501 lbs. to 7,500 lbs.
What are the attributes of a good bumper system?
What are the good attributes of a good bumper system? Geometry, stability and energy absorption. Bumpers on colliding vehicles should line up geometrically so that they engage each other during a low-speed crash to absorb crash energy.
Are truck bumpers regulated?
No, NHTSA regulates the height and impact capabilities of bumpers only of passenger cars, but not for light trucks, minivans or SUVs. However, some states and localities have requirements that limit bumper height for other vehicle types.
What speed are bumpers rated for?
NHTSA amended the bumper standard in May 1982, halving the front and rear crash test speeds for 1983 and newer car bumpers from 5 miles per hour (8 km/h) to 2.5 miles per hour (4 km/h), and the corner crash test speeds from 3 miles per hour (5 km/h) to 1.5 miles per hour (2 km/h).
What qualifies as a bumper?
As used in this section, “bumper” means any device designed and intended by a manufacturer to prevent the front or rear of the body of the vehicle from coming into contact with any other motor vehicle.
What is a 5 mph bumper?
What is a 5 mph bumper? Five miles per hour is a benchmark, an impact speed at which bumpers could easily — but generally don’t — prevent all but very minor cosmetic damage in barrier tests.
Why bumper guard is banned?
In simple terms, in case of an accident, the impact of energy and damage reduces significantly due to the crumple zones and the people inside the vehicle suffer less shock and injuries. Installing bull bars not only reduces the effectiveness of crumple zones but, poses a direct threat to the safety of an individual.
What is the legal height of a truck bumper?
Maximum bumper heights are determined by vehicle class and the GVWR. As such, the maximum heights are: Passenger cars, front: 22 inches; rear: 22 inches. Trucks and multipurpose vehicles, front: 24 inches; rear: 26 inches.
Are aftermarket bumpers legal?
For the most part, steel bumpers are legal in most states in the US. … In some countries, aftermarket bumpers are legal, provided you do not have LED light bars mounted on them which runs across the front of your vehicle.
What is the maximum bumper height for a passenger automobile MN?
Bumper height violations
The law in Minnesota states that bumper height must be within six inches of the factory bumper height. The maximum bumper height for 4x4s is 25 inches. Bumpers must be at least four and a half inches tall and must extend 10 inches outside of each frame rail.
What is under the bumper of a car?
That’s why some automakers add a plastic strip (also called a front lower valance or air dam) to the bottom of the bumper on their cars.
What plastic are car bumpers made from?
Car manufacturers use a variety of plastics to make bumpers. The most common include polycarbonates, polypropylene, polyamides, polyesters, polyurethanes, and thermoplastic olefins or TPOs; many bumpers contain a combination of these different materials.
What’s the plastic piece under the front bumper called?
It’s an Air Dam.
Can you drive with a broken bumper?
Is it illegal to drive with a damaged bumper? Depending on the accident, you may need to replace these because driving a car with bumper damage or a missing fender is illegal. Misplaced or broken bumpers, jagged edges, and major damage need to be repaired before you can drive again.
What is the difference between bumper and bumper cover?
A bumper is meant to protect the car, other bodywork, and occupants during a collision. A bumper cover covers the actual bumper. It may be designed for additional safety, performance, or for aesthetic reasons.
Is it safe to drive without front bumper?
As a matter of safety, yes, it is illegal to drive without bumpers. … But even though there’s no specific penalty for driving without a front or rear bumper, most state road authorities imply that driving without front or rear bumpers is illegal.