Onyx Forged
FREN

Forged wheels for BMW Z4 E89

Onyx Kyoto forged wheel

2009 – 2016

All our wheels in 18, 19 and 20″, made to your car's measurements. From €3,200 for a set of 4 in 18″. Free delivery to 35 European countries.

Great Britain: from £3,271.20 with UK import VAT, delivery included

Sizes offered: 18″ · 19″ · 20″. Prices below in 19″.

Our 45 wheels and their prices

Amounts in pounds: our checkout on 13 November 2026, for the wheels, delivery included (free), before the carrier's clearance fee and any import duty. The amount shown at checkout is the one charged for your order.

Exact measurements, offset, staggered fitment, concavity, another finish or diameter? Our workshop sets it all up with you. Contact the workshop

Technical specifications

Production period
2009-2016

Original fitment measurements: BMW Z4 E89

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. Our design office works out your offset and submits it to you before machining.

Hub

MeasurementOriginal value
PCD (bolt pattern)5x120 [1, 2, 3]
Centre bore72.6 mm [1, 2, 3]
ThreadM12 x 1.5 [1, 2, 3]
FixingWheel bolts [1, 2, 3]
Bolt or nut seatNot published
Tightening torqueNot published

“Not published”: no source sure enough to show it yet.

Original fitments by version

Version and fitmentFrontRear
DiameterWidthOriginal offset (manufacturer)TyreDiameterWidthOriginal offset (manufacturer)Tyre
Z4 sDrive18i, 20i, 23i, 28i, 30i, 35i and 35is, hard-top roadster (115 to 250 kW), 17 inches, staggered fitment, original equipment17″ [4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20]8J [4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20]ET 29 [4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20]225/45 R17 [4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20]17″ [4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20]8.5J [4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20]ET 40 [4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20]255/40 R17 [4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20]
Z4 sDrive18i, 20i, 23i, 28i, 30i, 35i and 35is, hard-top roadster (115 to 250 kW), 18 inches, staggered fitment, original equipment18″ [4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24]8J [4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24]ET 29 [4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24]225/40 R18 [4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24]18″ [4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24]8.5J [4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24]ET 40 [4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24]255/35 R18 [4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24]
Z4 sDrive18i, 20i, 23i, 28i, 30i, 35i and 35is, hard-top roadster (115 to 250 kW), 19 inches, staggered fitment, original equipment19″ [4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24]8J [4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24]ET 29 [4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24]225/35 R19 [4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24]19″ [4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24]9J [4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24]ET 40 [4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24]255/30 R19 [4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24]

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 Z4 E89

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 (17″) and go up to 24″.

DiameterMonoblock, set of four wheelsTwo-piece, set of four wheels
18″€3,200
Great Britain: £3,271.20 with UK import VAT		€4,300
Great Britain: £4,395.60 with UK import VAT
19″€3,200
Great Britain: £3,271.20 with UK import VAT		€4,300
Great Britain: £4,395.60 with UK import VAT
20″€3,300
Great Britain: £3,373.20 with UK import VAT		€4,400
Great Britain: £4,497.60 with UK import VAT
21″€3,550
Great Britain: £3,628.80 with UK import VAT		€4,750
Great Britain: £4,855.20 with UK import VAT
22″€3,750
Great Britain: £3,832.80 with UK import VAT		€5,200
Great Britain: £5,314.80 with UK import VAT
23″€3,950
Great Britain: £4,038 with UK import VAT		€5,750
Great Britain: £5,877.60 with UK import VAT
24″€4,100
Great Britain: £4,190.40 with UK import VAT		€6,300
Great Britain: £6,439.20 with UK import VAT

Amounts in pounds: our checkout on 13 November 2026, for the wheels, delivery included (free), 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, transit time included, from full payment, whether you order on the website or on quotation (or from the agreed deposit, if you asked for one), 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.

Free delivery to 35 European countries (Terms and Conditions, article 5.2).

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 Z4 E89

Frequently asked questions: wheels for the BMW Z4 E89

What are the original wheel offsets for a BMW Z4 E89?

A staggered fitment, according to its Swiss vehicle type records: 8J with an offset of 29 at the front, and at the rear 8.5J with an offset of 40 in 17 and 18 inches, 9J with an offset of 40 in 19 inches. [4, 20]

Which tyres, and which load index, for a BMW Z4 E89?

In 18 inches, 225/40 R18 with load index 88 at the front, i.e. 560 kg per tyre, and 255/35 R18 with load index 90 at the rear, i.e. 600 kg; in 19 inches, 225/35 R19 with load index 88 and 255/30 R19 with load index 91, i.e. 615 kg. [4, 20, 25, 26]

What load per wheel for a BMW Z4 E89?

The highest permissible load in its Swiss vehicle type records is 870 kg on the front axle and 1,000 kg on the rear axle, i.e. 435 and 500 kg per wheel. The rear 255/35 R18 tyre with load index 90 carries 600 kg. [20, 25, 26]

Which bolt pattern, which centre bore and which bolts for a BMW Z4 E89?

The bolt pattern is 5x120, the centre bore 72.6 mm, and the wheels are held by M12 x 1.5 bolts, according to koleso.ee and SCC. The tightening torque is not published: the sources consulted do not agree. [1, 2, 3]

Same fixing measurements

As original equipment, these cars have the same PCD, centre bore, thread and fixing as the BMW Z4 E89: PCD 5x120, centre bore 72.6 mm, thread M12 x 1.5, fixing: wheel bolts.

Same fixing measurements; original diameters and offsets: see each car's page. Bolt seat, width and brake clearance: our design office checks them for your car before machining.

Sources for the measurements and answers

  1. koleso.ee, BMW Z4 E89 [2009 .. 2013] (secondary source, consulted on 8 November 2026)
  2. koleso.ee, BMW Z4 E89 [2013 .. 2017] (secondary source, consulted on 8 November 2026)
  3. SCC Fahrzeugtechnik (spurverbreiterung.de), BMW Z4 (E89), types Z89, ZR, 2009-2016 (secondary source, consulted on 8 November 2026)
  4. Swiss Federal Roads Office (ASTRA), vehicle type record no. 1BB718 (BMW Z4 sDrive23i, Z89; LM31, 150 kW, Offen mit Verdeck / Hardtop, January 2009): permitted tyre and wheel combinations (tyre, width x diameter, offset) and axle loads (primary source, consulted on 8 November 2026)
  5. Swiss Federal Roads Office (ASTRA), vehicle type record no. 1BB719 (BMW Z4 sDrive30i, Z89; LM51, 190 kW, Offen mit Verdeck / Hardtop, January 2009): permitted tyre and wheel combinations (tyre, width x diameter, offset) and axle loads (primary source, consulted on 8 November 2026)
  6. Swiss Federal Roads Office (ASTRA), vehicle type record no. 1BB720 (BMW Z4 sDrive35i, Z89; LM71, 225 kW, Offen mit Verdeck / Hardtop, January 2009): permitted tyre and wheel combinations (tyre, width x diameter, offset) and axle loads (primary source, consulted on 8 November 2026)
  7. Swiss Federal Roads Office (ASTRA), vehicle type record no. 1BB878 (BMW Z4 sDrive23i, ZR; LM31, 150 kW, Offen mit Verdeck / Hardtop, February 2010): permitted tyre and wheel combinations (tyre, width x diameter, offset) and axle loads (primary source, consulted on 8 November 2026)
  8. Swiss Federal Roads Office (ASTRA), vehicle type record no. 1BB879 (BMW Z4 sDrive30i, ZR; LM51, 190 kW, Offen mit Verdeck / Hardtop, February 2010): permitted tyre and wheel combinations (tyre, width x diameter, offset) and axle loads (primary source, consulted on 8 November 2026)
  9. Swiss Federal Roads Office (ASTRA), vehicle type record no. 1BB880 (BMW Z4 sDrive35i, ZR; LM71, 225 kW, Offen mit Verdeck / Hardtop, February 2010): permitted tyre and wheel combinations (tyre, width x diameter, offset) and axle loads (primary source, consulted on 8 November 2026)
  10. Swiss Federal Roads Office (ASTRA), vehicle type record no. 1BC199 (BMW Z4 sDrive20i, ZR; LL31, 135 kW, Offen mit Verdeck / Hardtop, August 2011): permitted tyre and wheel combinations (tyre, width x diameter, offset) and axle loads (primary source, consulted on 8 November 2026)
  11. Swiss Federal Roads Office (ASTRA), vehicle type record no. 1BC201 (BMW Z4 sDrive28i, ZR; LL51, 180 kW, Offen mit Verdeck / Hardtop, August 2011): permitted tyre and wheel combinations (tyre, width x diameter, offset) and axle loads (primary source, consulted on 8 November 2026)
  12. Swiss Federal Roads Office (ASTRA), vehicle type record no. 1BC202 (BMW Z4 sDrive35i, ZR; LM71, 225 kW, Offen mit Verdeck / Hardtop, August 2011): permitted tyre and wheel combinations (tyre, width x diameter, offset) and axle loads (primary source, consulted on 8 November 2026)
  13. Swiss Federal Roads Office (ASTRA), vehicle type record no. 1BC481 (BMW Z4 sDrive35i, ZR; LM71, 225 kW, Offen mit Verdeck / Hardtop, June 2012): permitted tyre and wheel combinations (tyre, width x diameter, offset) and axle loads (primary source, consulted on 8 November 2026)
  14. Swiss Federal Roads Office (ASTRA), vehicle type record no. 1BC840 (BMW Z4 sDrive18i, ZR; LL11, 115 kW, Offen mit Verdeck / Hardtop, February 2013): permitted tyre and wheel combinations (tyre, width x diameter, offset) and axle loads (primary source, consulted on 8 November 2026)
  15. Swiss Federal Roads Office (ASTRA), vehicle type record no. 1BC841 (BMW Z4 sDrive20i, ZR; LL31, 135 kW, Offen mit Verdeck / Hardtop, February 2013): permitted tyre and wheel combinations (tyre, width x diameter, offset) and axle loads (primary source, consulted on 8 November 2026)
  16. Swiss Federal Roads Office (ASTRA), vehicle type record no. 1BC842 (BMW Z4 sDrive28i, ZR; LL51, 180 kW, Offen mit Verdeck / Hardtop, February 2013): permitted tyre and wheel combinations (tyre, width x diameter, offset) and axle loads (primary source, consulted on 8 November 2026)
  17. Swiss Federal Roads Office (ASTRA), vehicle type record no. 1BE944 (BMW Z4 sDrive18i, ZR; LL11, 115 kW, Offen mit Verdeck / Hardtop, February 2014): permitted tyre and wheel combinations (tyre, width x diameter, offset) and axle loads (primary source, consulted on 8 November 2026)
  18. Swiss Federal Roads Office (ASTRA), vehicle type record no. 1BE945 (BMW Z4 sDrive20i, ZR; LL31, 135 kW, Offen mit Verdeck / Hardtop, February 2014): permitted tyre and wheel combinations (tyre, width x diameter, offset) and axle loads (primary source, consulted on 8 November 2026)
  19. Swiss Federal Roads Office (ASTRA), vehicle type record no. 1BE946 (BMW Z4 sDrive28i, ZR; LL51, 180 kW, Offen mit Verdeck / Hardtop, February 2014): permitted tyre and wheel combinations (tyre, width x diameter, offset) and axle loads (primary source, consulted on 8 November 2026)
  20. Swiss Federal Roads Office (ASTRA), vehicle type record no. 1BE948 (BMW Z4 sDrive35i, ZR; LM71, 225 kW, Offen mit Verdeck / Hardtop, February 2014): permitted tyre and wheel combinations (tyre, width x diameter, offset) and axle loads (primary source, consulted on 8 November 2026)
  21. Swiss Federal Roads Office (ASTRA), vehicle type record no. 1BB881 (BMW Z4 sDrive35is, ZR; LM11, 250 kW, Offen mit Verdeck / Hardtop, February 2010): permitted tyre and wheel combinations (tyre, width x diameter, offset) and axle loads (primary source, consulted on 8 November 2026)
  22. Swiss Federal Roads Office (ASTRA), vehicle type record no. 1BC203 (BMW Z4 sDrive35is, ZR; LM11, 250 kW, Offen mit Verdeck / Hardtop, August 2011): permitted tyre and wheel combinations (tyre, width x diameter, offset) and axle loads (primary source, consulted on 8 November 2026)
  23. Swiss Federal Roads Office (ASTRA), vehicle type record no. 1BC480 (BMW Z4 sDrive35is, ZR; LM11, 250 kW, Offen mit Verdeck / Hardtop, June 2012): permitted tyre and wheel combinations (tyre, width x diameter, offset) and axle loads (primary source, consulted on 8 November 2026)
  24. Swiss Federal Roads Office (ASTRA), vehicle type record no. 1BE947 (BMW Z4 sDrive35is, ZR; LM11, 250 kW, Offen mit Verdeck / Hardtop, February 2014): permitted tyre and wheel combinations (tyre, width x diameter, offset) and axle loads (primary source, consulted on 8 November 2026)
  25. Fiches-auto.fr, tyre load index table (index → kg) (reference table, for a conversion, consulted on 3 October 2026)
  26. UN Regulation No 30 (revision 3), Annex IV, tyre load capacity index table (index → kg), OJ L 201 of 30/07/2008 (reference table, for a conversion, consulted on 8 November 2026)

Each measurement shown comes from a cited source: a manufacturer's document, an official vehicle type record, an original parts catalogue, or two concurring specialist sources. Measurements checked on 8 November 2026 by the Onyx Forged design office.

Custom forged wheels for the BMW Z4 E89

  • Forged 6061-T6 aluminium
  • 5-axis CNC machining
  • Designed to JWL/VIA standards
  • Fitment worked out for your BMW Z4 E89

BMW Z4 E89: 5x120, a 72.6 mm hub, M12 x 1.5 bolts

The second-generation BMW Z4 (E89), a roadster with a retractable hard top, from the 115 kW sDrive18i to the 250 kW sDrive35is, whose first Swiss vehicle type record dates from January 2009, is 5x120 on a 72.6 mm hub, with M12 x 1.5 wheel bolts: koleso.ee and SCC give these measurements, each cited in the table. The sources consulted do not give the same tightening torque: we do not publish it. The Z4 G29 that succeeds it has its own page.

17, 18 and 19 inches, always a staggered fitment

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 Z4 E89, an 8J front wheel with an offset of 29 and a wider rear wheel, with an offset of 40: 8.5J in 17 and 18 inches, 9J in 19 inches. The tyres follow: 225/45 R17 and 255/40 R17, 225/40 R18 and 255/35 R18, 225/35 R19 and 255/30 R19.

The load the wheel must carry

The highest permissible load in its records is 870 kg on the front axle and 1,000 kg on the rear axle, i.e. 435 and 500 kg per wheel. The tyre keeps at least the load index of the original fitment: 88 at the front in 18 and 19 inches, 90 for the rear 255/35 R18 (reading a tyre). Braking sets the smallest possible wheel diameter: the guide wheels and brakes explains why.

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 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 Z4 (E89)

Our design office establishes your car's measurements from its exact version, stated on the registration certificate, and presents them to you before machining. Each set is cut from forged 6061-T6 aluminium, machined on a 5-axis CNC centre, in monoblock, two-piece or three-piece construction; 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 Z4 E89: free 3D render, on request.

Useful guides

Other BMW Z4 generations

Onyx Forged designs and has wheels made for these generations too. Each one has its own PCD, offsets and sizes: make sure you are on yours.

See all generations of the BMW Z4, or all BMW models.