Durometer Ratings

Durometer Ratings

Durometer numbers simply represent a relative comparison of hardness between different but similar materials that have had their hardness measured using the same durometer scale, device and measurement standard. In general, a higher durometer material will be harder than a lower durometer material.

What is a durometer rating?

Durometer or Shore durometer is a standardized way to measure the hardness of materials like rubber (elastomers) and plastics. Durometer measurement scales range from 0 to 100 but there is no such thing as a durometer unit of measurement. 

Durometer Rating Scale Test Explanation

The above is a simplified graphic representation of a durometer hardness test. The arrows represent the applied load or force the Durometer puts on the material. 

Notice that there are significant differences between the shapes of the indenter tips. Type A indenters (left) have a 35° cone angle and Type D indenters (right) have a 30° cone angle. Type A indenters have a “truncated” or flat tip that is 0.79 mm in diameter. Type D indenters have a sharper tip with a rounded end that is 0.1 mm in diameter.

For all materials testing, hardness tests measure the depth of indentation in the material created by a given force using a standardized pressure foot or indenter.

When we refer to Durometer ratings on product specs for any Valor Offroad tires, we always use a Type A Durometer.

What is a tire bead gap

What is a tire bead gap

There is more than meets the eye when you dissect how a tire and wheel combo inflates, stays inflated and why some wheels and tires shouldn't be matched together. We take a deep dive into what makes certain wheel engineering superior when deciding your next combo.
What is a Dual-Drill UTV Wheel?

What is a Dual-Drill UTV Wheel?

A dual drilled wheel is a wheel that is drilled with two sets of bolt holes. With this additional set of holes, dual drill wheels can accept two different bolt patterns. On all dual-drill wheels, the larger hub bore of the two bolt patterns is used to ensure proper fitment.  
backspacing vs offset what is the difference powersports utv atv

Wheel Backspacing vs. Offset

4+3? 6+1? 25mm? We put to bed the UTV industry debate on what measurement is better, why we use wheel offset and wheel backspacing in the powersports industry, and we do a deep dive into why each measurement matters.

The Source is your destination for applicable and useful posts, how-tos and recommendations to keep you and your passengers safe and prepared. Have a topic you'd like to know more about? Search the site using top navigation. Have a topic we haven't covered yet? Shoot us an email using our contact form.

Polaris RZR Turbo S on Valor V02 Dual Drill UTV Wheels



Valor V06 beadlock RZR PRO R wheel 5 lug

Subscribe to Valor Newsletter

Promotions, new products and sales. Direct to your inbox.