Off-The-Road Tires
Off-the-road tires built for mining, construction, and agriculture - deep-tread designs that deliver traction and durability in the harshest terrain.
On Site, the Tyre Is Never the Expensive Part
A wheel loader or articulated dump truck standing idle costs its operator far more per hour than the tyre that stopped it. Add the recovery equipment, the crew waiting, and the production schedule slipping behind, and a single avoidable failure can outweigh the price of a full set.
Off-road surfaces attack tyres in ways road surfaces never do. Sharp rock cuts and chips the tread. Heavy payloads over abrasive ground generate heat that breaks compounds down from the inside. Boulders and uneven terrain deliver impacts straight into the casing. Mud and clay pack into the tread until traction disappears and cycle times stretch out. Each of these is a distinct failure mode, and a tyre that resists one may still fail on another.
Bison Trax addresses them individually: a cut and chip resistant compound for sharp rock, a heat resistant formulation for sustained heavy loads, a multi-layer casing with nylon breakers to absorb impact, reinforced bead and sidewall construction for payloads up to 35+ tonnes per tyre, and an open-lug self-cleaning pattern that keeps working in mud and clay.
Engineered for the Extreme.
Cut & Chip Resistant
Specially formulated rubber compound resists cuts, chips, and chunking on sharp rocks, gravel, and debris-laden surfaces.
Heat Resistant Compound
Engineered to maintain structural integrity under extreme heat generated by heavy loads on abrasive off-road terrain.
Maximum Load Capacity
Reinforced bead and sidewall construction supports massive payloads - built for the heaviest earthmoving equipment.
Self-Cleaning Tread
Open-lug tread pattern ejects mud, clay, and loose material to maintain consistent traction in challenging conditions.
Why Sites Trust Bison Trax.
Off-Road Dominance
Purpose-built for mining pits, quarries, and construction sites where ordinary tires fail within weeks.
Extended Service Life
Premium natural rubber blend delivers 30–50% longer tread life compared to standard OTR tires in similar applications.
Impact Resistance
Multi-layer casing with nylon breakers absorbs shocks from boulders and uneven terrain without casing damage.
Low Downtime Design
Robust construction minimizes flats and blowouts, keeping expensive machinery operational and productive.
Technical Details.
Built For.
Need Site-Scale Supply?
Contact our team for bulk orders, custom tread patterns, or on-site fitment consultation for your fleet.
Get in Touch →Decoding OTR Tread Patterns.
OTR tyres are classified by service category and tread depth under the TRA and ISO 4250 standards. The letter says what the machine does; the number says how deep the tread is.
| Code | Tread | Best suited to | Trade-off |
|---|---|---|---|
| E3 / L3 | Standard rock tread | Mixed surfaces, general site work, moderate cut risk | Balanced life and traction |
| E4 / L4 | Deep tread, around 1.5x depth | Abrasive ground, heavy loader duty, quarry work | More wear life, runs hotter |
| L5 | Extra deep, smooth pattern | Underground and severely abrasive conditions | Maximum life, less self-cleaning |
The Letter: Service Category
E denotes earthmover and haulage service, typically articulated dump trucks and scrapers. L denotes loader and dozer service. G denotes grader service. Matching the category to the machine matters as much as choosing the right size.
Reading the Size
In 23.5-25, the 23.5 is section width in inches and the 25 is rim diameter in inches. A dash means bias construction; an R, as in 23.5R25, means radial. Bison Trax spans 17.5-25 through 29.5-25 in both constructions.
Download Brochures
Detailed product specifications, compliance data and technical drawings.
Common Questions
Bison Trax OTR, Answered.
Tread codes, sizing, construction and distribution — the questions site managers and importers ask most about the Bison Trax OTR range.
What do OTR tread codes like E3, L3, L4 and L5 mean?
The letter is the service category and the number is the tread depth class. E covers earthmover and haulage service, L covers loader and dozer service, and G covers graders. The number rises with tread depth: 3 is standard rock tread, 4 is deep tread with roughly 1.5 times the depth, and 5 is extra deep, usually a smooth or near-smooth pattern for maximum wear life. Bison Trax is offered in E3/L3 rock, E4/L4 deep tread and L5 smooth.
How do I read an OTR size such as 23.5-25?
23.5 is the section width in inches and 25 is the rim diameter in inches. A dash indicates bias construction; radial sizes carry an R instead, as in 23.5R25. Bison Trax is supplied in both constructions across 17.5-25, 20.5-25, 23.5-25, 26.5-25 and 29.5-25, covering most wheel loader and articulated dump truck fitments.
Should a site choose bias or radial OTR tyres?
Bias tyres have crossed body plies, giving a stiffer sidewall that resists cuts and impact from rock — often preferred in quarries and severe rocky underfoot conditions, at a lower purchase price. Radial tyres flex more, run cooler over longer hauls and generally last longer on distance work. As a rule: short cycles on sharp rock favour bias, longer haul distances favour radial.
Which tread pattern suits which application?
Rock tread (E3/L3) is the general-purpose choice for mixed surfaces and moderate cut risk. Deep tread (E4/L4) suits abrasive conditions and heavy loader work where wear life is the priority. L5 smooth maximises rubber on the ground for the longest possible life in underground or heavily abrasive conditions, with reduced self-cleaning. Matching pattern to underfoot conditions has more effect on cost per hour than brand alone.
Why does a self-cleaning tread matter on site?
In mud and clay, material packs into the tread and the tyre loses its bite, so the machine slips, cycle times lengthen and fuel burn rises. An open-lug pattern ejects that material as the tyre rotates, keeping traction consistent. On wet sites this affects productivity more directly than tread depth does.
Can I supply Bison Trax OTR tyres in my country?
Yes. Tesla Power USA appoints distributors, wholesalers and importers by territory, with West Africa and East Africa currently prioritised — both regions with substantial mining, quarrying and infrastructure activity. Bulk orders, custom tread patterns and on-site fitment consultation are handled by the regional team.
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Trade buyers can review distributor partnership terms, register a warranty, or contact the regional team.
Where the Road Ends, We Begin.
From mining pits to mega infrastructure - Bison Trax OTR tires deliver unyielding performance where it matters most.