Radial vs Bias OTR Tires: Which Is Best for Your Fleet?
Radial vs bias OTR tires compared: life, heat, cut resistance and price. Find out which is best for your loaders, graders and dump trucks.
The question of radial vs bias OTR tires comes up on almost every quotation. Both have a place. The right choice depends on haul distance, speed, ground conditions and how long you keep a machine.

How Radial OTR Tires Are Built
A radial tire has steel cords running straight across from bead to bead, with steel belts under the tread. The sidewall flexes on its own while the tread stays flat on the ground. That gives a bigger footprint, lower heat and better fuel use.
How Bias OTR Tires Are Built
A bias tire uses nylon plies laid at an angle, crossing each other. The sidewall and tread work together, which makes the casing stiff and tough against side cuts.
Where Radials Win
- Long haul roads and higher speeds
- Hot climates where heat builds up
- Machines that run two or three shifts a day
- Operations that track cost per hour
Where Bias Tires Still Make Sense
- Short loading cycles in quarries and scrap yards
- Sites with sharp rock on the sidewalls
- Low-hour machines and rental fleets
- Buyers with a tight upfront budget
Cost per Hour, Not Price per Tire
A radial may cost 30 to 60 percent more than a bias tire in the same size. On long cycles it often lasts much longer, so the cost per hour is lower. On short, rough cycles the gap closes. Keep a simple log of hours per tire and the answer for your site becomes clear.
Radial vs Bias OTR Tires: Our Advice
Do not mix radial and bias tires on one axle, and follow the machine maker’s guidance. The radial tire article explains the history of the design. To compare options, browse radial otr tires and bias otr tires, or send us your machine and cycle and we will suggest both.
Questions About Radial vs bias OTR tires?
Every site is different, and a short conversation often saves a costly mistake. Tell us what your machines do, how many hours they run and where they work. We will suggest a tire, a backup option and a realistic price. Start with the tire catalogue or the brands page, then send your list.
We reply within one working day, Thailand time, by email at info@orttirethai.shop or on WhatsApp +66 640 130 805.