The common sizes, machine by machine, across mining, civil, agriculture, forestry and industrial work. Fifty years of trading, written down. Search it by machine, model or size.
These are the fitments we see most, given as the opinion of an independent trader rather than as engineering advice. A machine's actual fitment varies with model, year and options, so confirm any size against the machine's current fitment data before buying. If a size below looks right, chances are we have traded it this month.
CAT 777, 785, 789 and 793, Komatsu HD1500, 830E and 930E, up to the CAT 797 and Komatsu 980E at the ultra-class end.
TRA service type: E-4 haulage
In our view the 27.00R49 and the 40.00R57 between them cover most of the haulage enquiries in the country. The 63 inch ultra sizes are scarce and allocation driven, which is exactly where an independent trader earns a call.
CAT 773 and 775 class trucks, and water carts built on 777 and 785 chassis.
TRA service type: E-3 / E-4
Support gear is where tier-two brands have earned acceptance, in our view: a water cart is not production critical, so the economics favour the challenger brands and good second-hand casings.
CAT 988, 992 and 993, Komatsu WA800, WA900 and the WA1200 class loading at the face.
TRA service type: L-5 deep tread rock
Face loading is the hardest tyre duty in surface mining, so this is deep-tread L-5 territory, radial or bias by site preference. Chains and fill are common where the rock is at its worst.
CAT R1600 and R2900, Sandvik LH517 and LH621 class boggers.
TRA service type: L-5S smooth slick
Smooth-tread slicks, because underground the sidewall is the battle, not traction. A failure on the decline stops the whole level, which is why this is the segment where premium brands hold on hardest.
CAT AD45 and AD63, Sandvik TH551 and TH663 hauling the decline.
TRA service type: L-5S / E-4
Confined ramps build heat, so TKPH matters as much underground as cut resistance does. Worth confirming the exact fitment per machine, since the same truck family runs different sizes by generation.
CAT 14, 16 and 24 class graders keeping the haul roads alive.
TRA service type: G-2 grader
The 14 and 16 class run 17.5R25 and 20.5R25; the big 24 class runs into 29.5R25. A well-maintained haul road saves more haul truck tyres than any compound choice, which makes the grader the cheapest tyre insurance on site.
CAT 824, 834 and 854 on cleanup and stockpile work.
TRA service type: L-4 / L-5
Push work chews sidewalls, so deep tread and stout casings win here. Sizes step with the machine class, and fitments vary enough by model year that the data plate is worth a look before ordering.
CAT 725 to 745, Volvo A25 to A60, Bell B40 and B50, Komatsu HM400.
TRA service type: E-3 / E-4
The biggest tyre population in civil earthworks, in our view. The 875/65R29 low-profile fitment on the big Bells and Volvos has gone from novelty to normal inside a decade.
CAT 950 to 980, Komatsu WA380 to WA500, Volvo L120 to L260.
TRA service type: L-3, L-5 in rock
The 23.5R25 and 26.5R25 are, to our eye, the most traded OTR sizes in the country across all sectors. An L-3 does the general work; step to an L-5 the day the loader meets shot rock.
CAT 12, 140, 150 and 160, John Deere 670G, Komatsu GD655.
TRA service type: G-2 grader
Radial 17.5R25 has largely displaced the old 14.00-24 bias on current machines, though the bias size still moves steadily for the older fleet, which is a long way from retired in regional Australia.
CAT 623, 627 and 637 on bulk earthworks and dam jobs.
TRA service type: E-2 fast haul
Scraper tyres run faster and hotter than anything else in earthmoving, so the E-2 shallow tread is deliberate: less rubber, less heat. A deep tread here is the wrong tyre, not a better one.
Pneumatic-tyred rollers finishing pavement and seal work.
TRA service type: C-1 smooth compactor
Smooth tread by design, since the tyre is the compaction tool. Sets are best replaced together so the roller sits level, and bitumen-resistant compounds are worth the ask on spray seal work.
Telehandlers, skid steers and backhoes doing everything else on site.
TRA service type: IND and implement treads
Small tyres, big downtime: a site does not stop for a haul truck the way it stops for the only telehandler. Solid and foam-filled options make sense wherever demolition rubble is underfoot.
John Deere 8R, Case IH Magnum, New Holland T8 and the articulated four-wheel-drives.
TRA service type: R-1W ag drive
Duals on the rears are standard broadacre practice, and the IF and VF casings that carry more load at lower pressure are, in our view, the best money spent on compaction-sensitive country.
Case IH Patriot, John Deere 4 Series, Goldacres and Hardi self-propelled rigs.
TRA service type: VF row crop
Tall and narrow to walk between rows, swapped for wider flotation rubber when the job is pre-emergent on soft country. Many operators run both sets and change with the season.
John Deere S Series, Case IH 8250, New Holland CR at harvest.
TRA service type: R-1W / cyclic field service
The wide radials up front carry the cyclic loading of a full grain tank; the old 30.5L-32 bias still turns up on the older fleet. Harvest waits for no freight, so sourcing these in November is a different job from sourcing them in June.
Chaser bins, air carts, spreader floaters and heavy implements.
TRA service type: flotation implement
Flotation is the whole point: a loaded chaser bin on narrow rubber undoes years of controlled traffic in one wet harvest. Bigger footprints at lower pressures, always, in our view.
Tigercat 620 and 630, John Deere 748 and 848 dragging stems to the landing.
TRA service type: LS-2 forestry
Steel-belted forestry casings, usually under chains, because stumps and offcuts spear ordinary rubber. This is a segment where the specialist forestry brands out-perform the general OTR names, in our view.
Ponsse, Komatsu and John Deere forwarders carrying timber out on bogies.
TRA service type: LS-2 flotation
Wide flotation sizes on bogie axles, very often running band tracks over the pairs, so the tyre is chosen as much for how it carries a track as for how it runs bare.
Wheeled harvesters working thinnings and plantation rows.
TRA service type: LS-2 flotation
Same family as the forwarder fitments, chosen for ground pressure between the rows. Plantation soils are the crop's foundation, so flotation here is silviculture as much as it is tyre choice.
Wheel loaders with log forks at landings, mill yards and chip mills.
TRA service type: L-4 / L-5
Standard loader sizes in harder treads, with foam fill common in mill yards where offcuts and bark hide the punctures. Good second-hand mining-spec casings do honest work here.
Reach stackers, empty container handlers and straddle carriers at the wharf.
TRA service type: IND-4 industrial
The 18.00-25 on reach stackers is the port workhorse. Duty cycles are relentless and the pavement is abrasive, so wear rates surprise people used to dirt; sourcing on lead time beats sourcing on failure.
All-terrain cranes from Liebherr and Grove, and rough-terrain cranes in the yards.
TRA service type: crane radial, mixed road and site
An all-terrain crane runs highway speeds between lifts, so the speed rating is part of the fitment, not a nicety. The 385/95R25 and 445/95R25 carry the old 14.00R25 and 16.00R25 names in the trade.
Face loaders and rigid dump trucks in hard-rock quarries.
TRA service type: L-5 / E-4
The natural home of a good second-hand mining casing: a 24.00R35 that came off a mine fleet with half its tread left has a full working life ahead of it in a quarry, at a fraction of new price. That trade is a fair slice of what we do.
Transfer station loaders, landfill machines and recycling yard handlers.
TRA service type: L-5, solid and foam-filled
The ground is made of punctures, so this segment runs on foam fill and solid tyres more than any other. The maths is simple: a solid costs more per tyre and less per year.
Military logistics and recovery vehicles, and specialised heavy fleets.
TRA service type: NHS cross-country patterns
Cross-country tread patterns of the XZL type, usually to contract specification rather than operator preference. Documentation and traceability matter as much as the rubber in this segment.
Sizes and fitments above are typical, given as the opinion of an independent trader (Jewell Tyres) for general reference, not as professional, procurement or engineering advice. A machine's actual fitment varies by model, year and options, and TRA classifications can be superseded. Confirm any size against the machine's current fitment data or the manufacturer's databook before acting on it.
Tell us the size and the machine, and we'll tell you what we can do. See current stock or send the enquiry straight in.