Onyx Forged
FREN

Custom forged wheels for BMW X4 M F98 (2019-2025)

Technical specifications

Production period
2019-2025

Original fitment measurements: BMW X4 M F98

The measurements of the car as delivered new, to identify yours and compare. Each value refers, by a number, to the sources that give it. They are not a recommendation: Onyx does not advise any specific offset.

Hub

MeasurementOriginal value
PCD (bolt pattern)5x112 [1, 2, 3, 4, 5, 6]
Centre bore66.6 mm [1, 2, 3, 4, 5, 6]
ThreadM14 x 1.25 [1, 2, 3, 4, 5, 6]
FixingWheel bolts [1, 3, 4, 6]
Bolt or nut seatNot published
Tightening torque140 Nm [1, 2, 3, 6]

“Not published”: no source gives it with the certainty we require at this stage (see the rule below).

Original fitments by version

Version and fitmentFrontRear
DiameterWidthOriginal offset (manufacturer)TyreDiameterWidthOriginal offset (manufacturer)Tyre
X4 M (353 kW) and X4 M Competition (375 kW), 21 inches, original equipment21″ [7, 8, 9, 10, 11, 12]9.5J [7, 8, 9, 10, 11, 12]ET 31 [7, 8, 9, 10, 11, 12]255/40 R21 [7, 8, 9, 10, 11, 12]21″ [7, 8, 9, 10, 11, 12]10J [7, 8, 9, 10, 11, 12]ET 39 [7, 8, 9, 10, 11, 12]265/40 R21 [7, 8, 9, 10, 11, 12]
X4 M (353 kW) and X4 M Competition (375 kW), 20 inches, original equipment20″ [7, 8, 9, 10, 11, 12]9J [7, 8, 9, 10, 11, 12]ET 28 [7, 8, 9, 10, 11, 12]255/45 R20 [7, 8, 9, 10, 11, 12]20″ [7, 8, 9, 10, 11, 12]10J [7, 8, 9, 10, 11, 12]ET 39 [7, 8, 9, 10, 11, 12]265/45 R20 [7, 8, 9, 10, 11, 12]
X4 M (353 kW) and X4 M Competition (375 kW), 20 inches, winter tyres, original equipment (winter tyres)20″ [7, 8, 9, 10, 11, 12]9J [7, 8, 9, 10, 11, 12]ET 28 [7, 8, 9, 10, 11, 12]255/45 R20 [7, 8, 9, 10, 11, 12]20″ [7, 8, 9, 10, 11, 12]9.5J [7, 8, 9, 10, 11, 12]ET 39 [7, 8, 9, 10, 11, 12]255/45 R20 [7, 8, 9, 10, 11, 12]

The offsets are the original ones, given by the manufacturer or by the sources cited; they help you identify your car's fitment.

What Onyx can make for the BMW X4 M F98

Custom forged wheels in forged 6061-T6 aluminium, designed to JWL/VIA standards, in monoblock or two-piece construction; three-piece wheels are made on quotation.

The diameters below start at the smallest original diameter recorded on this car (20″) and go up to 24″.

DiameterMonoblock, set of four wheelsTwo-piece, set of four wheels
20″€3,300
Great Britain: £3,440.40 with UK import VAT		€4,400
Great Britain: £4,586.40 with UK import VAT
21″€3,550
Great Britain: £3,700.80 with UK import VAT		€4,750
Great Britain: £4,951.20 with UK import VAT
22″€3,750
Great Britain: £3,908.40 with UK import VAT		€5,200
Great Britain: £5,420.40 with UK import VAT
23″€3,950
Great Britain: £4,117.20 with UK import VAT		€5,750
Great Britain: £5,992.80 with UK import VAT
24″€4,100
Great Britain: £4,273.20 with UK import VAT		€6,300
Great Britain: £6,566.40 with UK import VAT

Amounts in pounds: our checkout on 4 October 2026, before the carrier's clearance fee and any import duty. The amount shown at checkout is the one charged for your order.

Wheels delivered in 4 to 8 working weeks, shipping included, from full payment for an order on the website, or from the deposit for an order on quotation, and at the earliest from your approval of the measurements, the colour or the 3D render you asked for, under article 5.1 of the Terms and Conditions.

The offset and width of your wheels do not come from a table: the Onyx Forged design office calculates them for your car and your brakes, and submits them to you before machining.

Configure wheels for the BMW X4 M F98

Frequently asked questions: wheels for the BMW X4 M F98

What are the original offsets for the wheels of a BMW X4 M (F98)?

A staggered fitment, according to its Swiss vehicle type records: 9.5J x 21 with an offset of 31 at the front and 10J x 21 with an offset of 39 at the rear, or 9J x 20 with an offset of 28 and 10J x 20 with an offset of 39. For winter, 9J x 20 at the front and 9.5J x 20 at the rear, at the same offsets, on the X4 M and the X4 M Competition alike. [7, 12]

Which tyres, and which load index, does a BMW X4 M (F98) take?

In 21 inches, 255/40 R21 with load index 102 at the front, i.e. 850 kg per tyre, and 265/40 R21 with load index 105 at the rear, i.e. 925 kg; in 20 inches, 255/45 R20 with load index 105 and 265/45 R20 with load index 108, i.e. 1000 kg at the rear. For winter, 255/45 R20 with load index 105 on both axles. [7, 12, 13]

What is the load per wheel on a BMW X4 M (F98)?

Its Swiss vehicle type records give it a permissible load of 1,185 kg on the front axle and 1,425 kg on the rear axle, i.e. 592.5 and 712.5 kg per wheel, in both the 353 and the 375 kW versions: the rear carries the most. The 265/40 R21 rear tyre with load index 105 carries 925 kg. [7, 12, 13]

What PCD, centre bore and bolts does a BMW X4 M (F98) use?

The PCD is 5x112, the centre bore 66.6 mm, and the wheels are held by M14 x 1.25 bolts tightened to 140 Nm: wheelfitment.eu, koleso.ee and SCC give these measurements; ThreePiece.us and tirewheelguide.com give the PCD, the centre bore and the thread. [1, 2, 3, 4, 5, 6]

Same fixing measurements

As original equipment, these cars have the same PCD, centre bore, thread and fixing as the BMW X4 M F98: PCD 5x112, centre bore 66.6 mm, thread M14 x 1.25, fixing: wheel bolts.

Same fixing measurements; original diameters and offsets: see each car's page. The seat of the bolts or nuts, the width of the wheels and brake clearance are not compared here: this comparison is not an opinion on compatibility.

Sources for the measurements and answers

  1. koleso.ee, BMW X4 M F98 [2019 .. 2021], X4 M and X4 M Competition (secondary source, consulted on 21 October 2026)
  2. koleso.ee, BMW X4 M F98 LCI [2021 .. 2025] (secondary source, consulted on 21 October 2026)
  3. SCC Fahrzeugtechnik (spurverbreiterung.de), BMW X4 M (G4X; F34XM; F98), 2019 onwards (secondary source, consulted on 21 October 2026)
  4. ThreePiece.us, 2020 BMW X4 M (M and M Competition) (secondary source, consulted on 21 October 2026)
  5. tirewheelguide.com, BMW X4 M 2020 (F98 · 2019–2021), X4 M and X4 M Competition (secondary source, consulted on 21 October 2026)
  6. wheelfitment.eu, BMW X4 M F98 (2019 - ) (secondary source, consulted on 21 October 2026)
  7. Swiss Federal Roads Office (ASTRA), vehicle type record no. 1BP686 (BMW X4 M, type F34XM (F98), 353 kW, April 2019): permitted tyre and wheel combinations (tyre, width x diameter, offset) and axle loads (primary source, consulted on 21 October 2026)
  8. Swiss Federal Roads Office (ASTRA), vehicle type record no. 1BP687 (BMW X4 M Competition, type F34XM (F98), 375 kW, April 2019): permitted tyre and wheel combinations (tyre, width x diameter, offset) and axle loads (primary source, consulted on 21 October 2026)
  9. Swiss Federal Roads Office (ASTRA), vehicle type record no. 1BX883 (BMW X4 M, type F34XM (F98), 353 kW, July 2021): permitted tyre and wheel combinations (tyre, width x diameter, offset) and axle loads (primary source, consulted on 21 October 2026)
  10. Swiss Federal Roads Office (ASTRA), vehicle type record no. 1BX888 (BMW X4 M Competition, type F34XM (F98), 375 kW, July 2021): permitted tyre and wheel combinations (tyre, width x diameter, offset) and axle loads (primary source, consulted on 21 October 2026)
  11. Swiss Federal Roads Office (ASTRA), vehicle type record no. ABC642 (BMW X4 M, type F34XM (F98), 353 kW, November 2023): permitted tyre and wheel combinations (tyre, width x diameter, offset) and axle loads (primary source, consulted on 21 October 2026)
  12. Swiss Federal Roads Office (ASTRA), vehicle type record no. ABC647 (BMW X4 M Competition, type F34XM (F98), 375 kW, November 2023): permitted tyre and wheel combinations (tyre, width x diameter, offset) and axle loads (primary source, consulted on 21 October 2026)
  13. Fiches-auto.fr, tyre load index table (index → kg) (reference table, for a conversion, consulted on 3 October 2026)

Publication rule: a measurement is shown only if a primary source gives it (a manufacturer's document, an official vehicle type record, an original parts catalogue, the maker of the original wheel) without another primary source contradicting it, or if two independent specialist sources agree without a primary source contradicting them. The press and forums do not count. Measurements checked on 21 October 2026 by the Onyx Forged design office.

Designs for this generation

Three models from our catalogue, forged to measure for your BMW X4 M F98. The price is for a set of four wheels: it depends on the construction and the diameter.

Amounts in pounds: our checkout on 4 October 2026, before the carrier's clearance fee and any import duty. The amount shown at checkout is the one charged for your order.

Find my wheel · All 24 designs in the catalogue

See these wheels on your car

Custom forged wheels for the BMW X4 M F98

  • Forged 6061-T6 aluminium
  • 5-axis CNC machining
  • Designed to JWL/VIA standards
  • Fitment worked out for your BMW X4 M F98

X4 M (F98): 5x112, a 66.6 mm hub, M14 x 1.25 bolts at 140 Nm

The F98-generation BMW X4 M, as the 353 kW X4 M and as the 375 kW X4 M Competition, whose first Swiss vehicle type records date from April 2019, is 5x112 on a 66.6 mm hub, with M14 x 1.25 wheel bolts tightened to 140 Nm: wheelfitment.eu, koleso.ee and SCC give these measurements, and ThreePiece.us and tirewheelguide.com the PCD (bolt pattern), the centre bore and the thread, each cited in the table. The X3 M (F97), from which it is derived, has the same hub measurements and the same fitments.

A staggered fitment, in 20 or 21 inches

The vehicle type record of the Swiss Federal Roads Office (ASTRA), the document that sets the tyre and wheel combinations a car may carry, permits for the X4 M, before and after the July 2021 facelift, a staggered fitment, wider at the rear: 9.5J x 21 with an offset of 31 at the front and 10J x 21 with an offset of 39 at the rear, with 255/40 R21 and 265/40 R21 tyres, or 9J x 20 with an offset of 28 and 10J x 20 with an offset of 39, with 255/45 R20 and 265/45 R20 tyres. For winter, it permits 9J x 20 at the front and 9.5J x 20 at the rear, with 255/45 R20 tyres. The record lists the two front wheels in one field and the two rear wheels in the next; the table pairs them in that order, as for the M2 G87, which shares this format.

A heavy SUV: the rear carries the most

The record gives a permissible load of 1,185 kg on the front axle and 1,425 kg on the rear axle, i.e. 592.5 and 712.5 kg per wheel: the more heavily loaded axle takes the wider wheel. That is the load the wheel must carry, and the rear tyre must keep at least the load index of the original fitment, 105 for 265/40 R21 (reading a tyre (page in French)); the guide heavy SUV wheels and load per wheel (page in French) details the calculation.

What these measurements say about a forged wheel

The offset positions the wheel in the wheel arch: a wider wheel, or a lower offset, brings it closer to the wing. The Onyx Forged design office starts from the measurements on this page, your brakes and your tyres to calculate the width and offset of your wheels, then submits them to you. The offset calculator compares two fitments: it compares, it does not choose the measurement for you.

Roadworthiness test: what is examined

The French roadworthiness test (contrôle technique) examines the wheel without removing it (cracks, deformation, a wheel that protrudes beyond the bodywork) and verifies that the tyre size is one provided for by the manufacturer or accepted as equivalent. Keeping a tyre size from the original fitment, and at least its load index, avoids having to justify it; the details are on the roadworthiness test and registration page.

What we record before machining

Configure your forged wheels for the BMW X4 M (F98)

The Onyx Forged design office works out the measurements of your car from its exact version, stated on the registration document, and shows them to you before machining. Each set is cut from forged 6061-T6 aluminium, machined on a 5-axis CNC centre, as monoblock, two-piece or three-piece wheels; our wheels are designed to JWL/VIA standards. Prices by diameter and the lead time are given on this page, under “What Onyx can make”. Start your configuration or write to contact@onyxforgedwheels.com.

Configure custom wheels for your BMW X4 M F98: free 3D render, on request.

Useful guides

See all BMW models.