It’s a fact that when a vehicle sits for long periods the tires flatspot. The reasons that tires flatspot are basically a function of pressure, temperature and time. Flatspotting is either temporary, in that the tire will round out with driving, or permanent which effects the belting and casing of the tire. These permanent flat spots effectively ruin the tire. TireCradles will prevent this from occurring.
Here is a list of what has been tried with no personal success and with no success from our customers:
Pile carpet squares 'sandwiched' with carpet insulation, styrofoam, conveyor belting, comfort foot mats from a barber supply house, horse stall rubber matting, sand bags, industrial water nylon/rubber bags filled with anti-freeze, layers of cardboard, grass between cardboard layers, plywood, plywood and rugs.
This is all that has been tried and NOTHING HAS WORKED!
Then our company began to look into the physics of flat spotting, how they are measured, what causes them etc. and the rest is a lot of work but a product that really does exactly what it says it will do: they prevent flat spots.
No tire is perfectly round and the peak to peak changes ( P/P ) reflect how much pressure must be applied to the tire in downforce to make the tire perfectly round. That is, you apply pressure at the axle while the tire is rotating until the tire is perfectly round. A flat spotted tire will increase this value by a minimum of about 4 psi. In our testing, this value has more than doubled from the original value! The test showed a change from 16.0 to 32.2 psi.
We have seen cases where torque converters, clutch assemblies and half shafts have been replaced trying to fix the problem; it is almost always tire flat spotting. For the car owner this is very time consuming, personally frustrating, and expensive if the car is out of warranty.
Tire construction also determines the tendency of a tire to flatspot. Soft compounds and aspect ratios associated with performance tires accelerate flatspotting. An aspect ratio of 50 or less has little sidewall flexion due to the short sidewalls. Thus the pressure is absorbed by the contact patch and the tire flatspots. Basically the following is a truism: The wider the tire, the greater its tendency to flatspot. Vehicle weight, time parked and ambient temperature all factor in flatspotting your tires. TireCradles are designed to prevent flatspotting on all road going tires by negating the above variables. They keep your tires insulated from the temperatures and pressures that cause flatspotting, regardless of the amount of time a vehicle is parked. Make sure your automobile is ready to perform, use TireCradles.
|Size:||14" x 18" x 1 1/2"|
|Weight:||Approx. 25 lbs. per Set of Four|
|We accept VISA and MasterCard:|
|Toll Free Order:||(866)740-0193|
ZR Auto Sales
1720 -Radisson DR SE
||Middle East Distributor
P.O. Box 5654
Majaal Warehouse No. 2
Unit 4 Building 1994,
Road 1527, Bahrain Investment Wharf,
Kingdom Of Bahrain