Dual Marked Tires

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Dual Marked Tires

What is Dual Marked Tires

Some tires have been developed for more than one application, which means, for instance, that the tire can be used on a Loader application (Loader and Dozer operation – indicated by the TRA code L on the sidewall) as well as an Articulated Dump Truck application (Earthmover or transport operation indicated by the TRA code E on the sidewall).
These tires are often called ‘dual marked tires’ or ‘tires with dual specification codes’.

dual marked tire

The example above shows a dual marked tire 875/65R29 E3/L3.

TRA Code L3 corresponds Load Index 214 (21200kgs) and Speed Symbol A2 (10 km/h)
TRA Code E3 corresponds Load Index 203 (15500kg) and the Speed Symbol B (50 km/h)
In this example the dual marked tire has for both applications (Loader and Earthmover).

SIZE STAR RATING LOAD INDEX TRA CODE TREAD DEPTH TYPE Standard Rim (Rim Width &Flange) DIAMETER SECTION WIDTH Max Load STANDER PRESSURE MAX SPEED
(mm) (mm) (mm) (kg) (bar) (Km/h)
875/65R29 ★★ 214 L-3 53 TL 28.00-3.5 1845 900 21200 4.75 10
203 E-3 53 TL 28.00-3.5 1845 900 15500 4.75 50

* Multiple Star Rating

Radial Tires are sometimes marked with “LOADER & DOZER ★(one star)” and “EARTHMOVER ★★(two star)”, which have specified load capacity on each servicing condition.

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