22.5×8.25 Tubeless Steel Wheel — Trailer & Drive-Axle Workhorse

Where the 22.5×8.25 fits

The 8.25-inch rim is the catalogue-standard width for 11R22.5 and 295/80R22.5 — the tyre classes on most trailer axles and many drive axles across East Africa, the Gulf and Latin America. Where the 22.5×9.00 pairs with 12R22.5 and 315/80R22.5, the 22.5×8.25 is the size a distributor sells by the axle set: on duals, every three-axle trailer takes twelve and every 6×4 drive bogie eight.

In our range it runs alongside the 22.5×9.00 and shares its construction: the same 15°DC tubeless profile to GB/T 31961 and the same AG440CL / AG380CL wheel steel. Only the rim well width and the bolt-pattern set change.

Catalogue configurations

Dimensions are reproduced from the group's wheel catalogue: five bolt-pattern configurations plus the offset-120 model with a confirmed unit weight of 44 kg. Fields the catalogue does not list are shown as —.

Other weights, valve-hole position and hole chamfer come with the model drawing. The full 15°DC tubeless series (56 models, 16.5"–24.5") is in the technical catalogue.

H1 is the hub-piloted flat-seat form — Ø26 holes, flange nuts, the wheel located on the hub pilots. JSR22 is the stud-piloted ball-seat form — Ø32 or Ø32.5 holes, centred by spherical-seat nuts. 10×335 H1 is the ISO fitment on European and current Chinese trucks; 10×285.75 is the North American pattern, catalogued here in both forms; 8×285 and 8×275 ball-seat are the JIS patterns on Japanese trucks and the used Japanese imports common in East Africa. A matching PCD with the wrong seat form is the most frequent fitment error — the PCD and bolt-pattern chart shows how to tell them apart.

Construction and material

Load rating

Load capacity is reported per model: each configuration has its own radial and cornering fatigue result, and the test report for the model ordered is available on request. As a market reference, 22.5×8.25 tubeless steel wheels are typically rated 3,150–3,750 kg per wheel; North American catalogues commonly mark the same size 7,400 lb (≈3,360 kg). Size the position from those figures — a 13 t trailer axle on duals needs at least 3,250 kg per wheel — then confirm against the report. The load rating guide covers the arithmetic and margins for overloaded fleets and rough roads.

Quality system and documents

The 22.5×8.25 is manufactured under IATF 16949:2016 — certificate No. 0504999 (manufacturing of steel and aluminum wheels), alongside group certificate No. 0599434. For a buyer's file:

• Certificate copies are sent with the quotation; verify them through the issuing certification body — the IATF verification guide explains how.
• Per-model test report (radial and cornering fatigue) available on request for the configuration ordered.
• Model drawing with PCD, hole form, offset and valve position issued for approval before production.
• Third-party pre-shipment inspection can be arranged before loading.

How to specify the 22.5×8.25 in an enquiry

Five lines are enough for a spec check and quotation: bolt pattern as hole count × hole diameter and PCD with the seat form (for example 10×32.5 JSR22 on 285.75); offset, or the vehicle model if unsure; tyre size; quantity per configuration and container plan; and colour. Ask at enquiry stage for IATF copies, the test report or country-specific conformity documents. The import guide covers loading, documents and inspection.

Frequently asked questions

Is the 22.5×8.25 interchangeable with the 22.5×9.00?

Not as a rule. Both are 22.5-inch 15°DC tubeless wheels and are catalogued in the same bolt patterns, but the rim width has to match the tyre: 8.25 is the catalogue-standard rim for 11R22.5 and 295/80R22.5, while 9.00 is the catalogue-standard rim for 12R22.5 and 315/80R22.5. Check the tyre maker's approved-rim table before mixing widths on one vehicle.

Which bolt pattern do I need — 10×335 or 10×285.75?

It follows the vehicle, not the wheel size. 10×335 with Ø26 hub-piloted holes (H1) is the ISO fitment on European and current Chinese trucks; 10×285.75 is the North American pattern and exists in both hub-piloted (H1, Ø26) and ball-seat (JSR22, Ø32.5) forms; 8×285 and 8×275 ball-seat are the JIS patterns on Japanese trucks. Confirm PCD, hole count, hole diameter and seat form from the hub before ordering.

What is the load rating of the 22.5×8.25 steel wheel?

Load capacity is reported per model with its test report, available on request. As a market reference, 22.5×8.25 tubeless steel wheels are typically rated 3,150–3,750 kg per wheel; North American catalogues commonly mark the same size 7,400 lb (about 3,360 kg). Size the position from your axle rating first, then confirm against the model's report.

What does a 22.5×8.25 tubeless steel wheel weigh?

The confirmed unit weight is 44 kg for the offset-120 configuration. Weights for the other catalogue configurations are supplied on request with the model drawing. That 44 kg sits at the heavier end of the 38–45 kg market range for this size.