TireCradles - The Solution for Preventing Tire Flat Spots
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LDB Auto Performance Inc.  -  We Know Why You Drive

TireCradles Prevent Tire Flatspotting

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.


  • Guaranteed for Life

  • Accepts Vehicle Weights Up to 10, 000 lbs.

  • Accepts Tread Widths From 4 to 14 Inches

  • Proven by Independent Tests to Prevent Flat Spots

  • Easy to Use - Just Park on Them

  • Patented - # 6,344,266

  • Made in the USA

What Has Been Tried To Prevent Flat Spots

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.

How Flat Spots Are Measured

Flat spots are measured using two criteria; peak to peak changes and harmonics.

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.

Temporary Flat Spots

Temporary flat spots are simply rubber compression and they go away as soon as the rubber warm and re-rounds. These are always either 1st or 2nd harmonic flat spots. It is crucial to remember that all permanent flat spots begin with a temporary flat spot. The only difference is how long the vehicle stays parked. Harmonics are measured from 1 to 10 with ten being the least case scenario. A first harmonic flat spot ( 1 ) means that for every rotation of the tire, at any speed, the flat spot is felt. As such, you would feel this going 22 mph or 122 mph.

Permanent Flat Spots

A high harmonic flat spot, 6 or above, is often not recognized as a flat spot but is often confused with a mechanical problem. This is best explained as a particular speed where the problem manifest itself. An example would be a car that has a shimmy or vibration from 66 to 70 mph but none above or below that speed range. This is almost always a high harmonic permanent flat spot.

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.

Your tires are designed to operate in a wide variety of temperatures. Most performance tires are designed to function best at triple digit temperatures. While the rubber compounds offer the best performance at these temperatures, flatspotting is also accelerated. What makes your tires work also helps them to flatspot. Parking a hot, soft tire on a cool concrete surface accelerates flatspotting because the contact patch is stressed by the temperature and density differences. Basically the tire must "give" because it is softer and hotter than a concrete floor.

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.

A Few Words About Cost

TireCradles are made of a very dense, polyurethane polymer and this polymer is very costly, but it is the only polymer that works for this specific application. Think of it from this perspective, how many sets of tires will you own in your lifetime and what is the cost of replacing a ruined performance tire or tires? We think that you will agree that TireCradles are really smart insurance. It’s your car and your ride — you decide.


Size: 14" x 18" x 1 1/2"
Price: $349
Weight: Approx. 25 lbs. per Set of Four
We accept VISA and MasterCard:
Toll Free Order: (866)740-0193
 For Non-US Customers 937-514-7473