Onyx Forged
FREN

Custom forged wheels for Mercedes GLC 63 AMG X253 and C253 (2017-2023)

Technical specifications

Production period
2017-2023

Original fitment measurements: Mercedes GLC 63 AMG X253 and C253

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, 7, 8, 9, 10, 11]
Centre bore66.6 mm [1, 2, 3, 4, 5, 8, 9, 10, 11]
ThreadM14 x 1.5 [2, 3, 5, 6, 7, 8, 10, 11]
FixingWheel bolts [2, 5, 6, 11, 12]
Bolt or nut seatNot published
Tightening torque150 Nm [5, 11, 12]

“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
GLC 63 4MATIC+ (350 kW), SUV and coupé, 19 inches, original equipment19″ [13, 14, 15, 16, 17]8J [13, 14, 15, 16, 17]ET 19 [13, 14, 15, 16, 17]235/55 R19 [13, 14, 15, 16, 17]19″ [13, 14, 15, 16, 17]9J [13, 14, 15, 16, 17]ET 18 [13, 14, 15, 16, 17]255/50 R19 [13, 14, 15, 16, 17]
GLC 63 4MATIC+ (350 kW), SUV and coupé, 20 inches, original equipment20″ [13, 14, 15, 16, 17]9.5J [13, 14, 15, 16, 17]ET 30 [13, 14, 15, 16, 17]265/45 R20 [13, 14, 15, 16, 17]20″ [13, 14, 15, 16, 17]10J [13, 14, 15, 16, 17]ET 28 [13, 14, 15, 16, 17]295/40 R20 [13, 14, 15, 16, 17]
GLC 63 4MATIC+ (350 kW), SUV and coupé, 21 inches, original equipment21″ [13, 14, 15, 16, 17]9.5J [13, 14, 15, 16, 17]ET 30 [13, 14, 15, 16, 17]265/40 R21 [13, 14, 15, 16, 17]21″ [13, 14, 15, 16, 17]10J [13, 14, 15, 16, 17]ET 28 [13, 14, 15, 16, 17]295/35 R21 [13, 14, 15, 16, 17]
GLC 63 S 4MATIC+ (375 kW), SUV and coupé, 20 inches, original equipment20″ [18, 19, 20, 21]9.5J [18, 19, 20, 21]ET 30 [18, 19, 20, 21]265/45 R20 [18, 19, 20, 21]20″ [18, 19, 20, 21]10J [18, 19, 20, 21]ET 28 [18, 19, 20, 21]295/40 R20 [18, 19, 20, 21]
GLC 63 S 4MATIC+ (375 kW), SUV and coupé, 21 inches, original equipment21″ [18, 19, 20, 21]9.5J [18, 19, 20, 21]ET 30 [18, 19, 20, 21]265/40 R21 [18, 19, 20, 21]21″ [18, 19, 20, 21]10J [18, 19, 20, 21]ET 28 [18, 19, 20, 21]295/35 R21 [18, 19, 20, 21]
GLC 63 S 4MATIC+ (375 kW), SUV and coupé, 19 inches, winter tyres, original equipment (winter tyres)19″ [20, 21, 22]8J [20, 21, 22]ET 19 [20, 21, 22]235/55 R19 [20, 21, 22]19″ [20, 21, 22]8J [20, 21, 22]ET 19 [20, 21, 22]235/55 R19 [20, 21, 22]

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 Mercedes GLC 63 AMG X253 and C253

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 (19″) and go up to 24″.

DiameterMonoblock, set of four wheelsTwo-piece, set of four wheels
19″€3,200
Great Britain: £3,336 with UK import VAT		€4,300
Great Britain: £4,482 with UK import VAT
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 Mercedes GLC 63 AMG X253 and C253

Frequently asked questions: wheels for the Mercedes GLC 63 AMG X253 and C253

What are the original offsets for the wheels of a Mercedes-AMG GLC 63 (X253)?

A staggered fitment, according to its Swiss vehicle type records: in 20 and 21 inches, 9.5J with an offset of 30 at the front and 10J with an offset of 28 at the rear; in 19 inches, on the GLC 63 only, 8J with an offset of 19 and 9J with an offset of 18. The GLC 63 S takes the 19-inch size for winter, 8J with an offset of 19 on both axles. [13, 15, 20]

Which tyres, and which load index, does a Mercedes-AMG GLC 63 (X253) take?

In 20 inches, 265/45 R20 with load index 108 at the front, i.e. 1000 kg per tyre, and 295/40 R20 with load index 110 at the rear, i.e. 1060 kg; in 21 inches, 265/40 R21 with load index 105 and 295/35 R21 with load index 107, i.e. 925 and 975 kg; in 19 inches, 235/55 R19 with load index 101 and 255/50 R19 with load index 103. The records only permit these fitments with AMG wheels. [13, 15, 23]

What is the load per wheel on a Mercedes-AMG GLC 63 (X253)?

Its Swiss vehicle type records give it a permissible load of 1,260 to 1,300 kg on the front axle, and of 1,280 to 1,320 kg on the rear axle for the SUV, 1,290 to 1,330 kg for the coupé, i.e. 630 to 650 kg per wheel at the front and up to 665 kg at the rear. The 295/40 R20 rear tyre with load index 110 carries 1060 kg. [15, 16, 23]

What PCD, centre bore and bolts does a Mercedes-AMG GLC 63 (X253) use?

The PCD is 5x112, the centre bore 66.6 mm, and the wheels are held by M14 x 1.5 bolts: koleso.ee and tirewheelguide.com give these measurements for the GLC 63, SCC, wheelfitment.eu and hubcentric-rings.com for the X253-generation GLC. The Mercedes-Benz owner's manual gives a tightening torque of 150 Nm for the bolts. [1, 2, 5, 8, 10, 11, 12]

Same fixing measurements

As original equipment, these cars have the same PCD, centre bore, thread and fixing as the Mercedes GLC 63 AMG X253 and C253: PCD 5x112, centre bore 66.6 mm, thread M14 x 1.5, 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. hubcentric-rings.com, Mercedes-Benz GLC, “X253 (2015–2022)” row, AMG 63 not named (secondary source, consulted on 21 October 2026)
  2. koleso.ee, Mercedes-Benz GLC-Class AMG X253 [2015 .. 2019], GLC 63 and GLC 63 S (secondary source, consulted on 21 October 2026)
  3. koleso.ee, Mercedes-Benz GLC-Class Coupe AMG C253 [2016 .. 2019], GLC 63 and GLC 63 S (secondary source, consulted on 21 October 2026)
  4. koleso.ee, Mercedes-Benz GLC-Class AMG X253 Facelift [2019 .. 2023], GLC 63 S 4Matic+ (secondary source, consulted on 21 October 2026)
  5. SCC Fahrzeugtechnik (spurverbreiterung.de), Mercedes GLC-Klasse inkl. Coupé (X253), type 204 X, 2015-2022, AMG 63 not named (secondary source, consulted on 21 October 2026)
  6. ThreePiece.us, 2020 Mercedes-Benz GLC63 AMG 4Matic (secondary source, consulted on 21 October 2026)
  7. ThreePiece.us, 2020 Mercedes-Benz GLC63 AMG S (secondary source, consulted on 21 October 2026)
  8. tirewheelguide.com, 2020 Mercedes-Benz GLC-Class AMG, GLC 63 4Matic+ (X253 Facelift · 2019–2023) (secondary source, consulted on 21 October 2026)
  9. tirewheelguide.com, 2018 Mercedes-Benz GLC-Class AMG, GLC 63 (X253 · 2015–2019) (secondary source, consulted on 21 October 2026)
  10. tirewheelguide.com, 2020 Mercedes-Benz GLC-Class Coupe AMG, GLC 63 4MATIC+ (C253 Facelift · 2019–2023) (secondary source, consulted on 21 October 2026)
  11. wheelfitment.eu, Mercedes GLC-Klasse 18 inch (2015 - ), GLC platform, AMG 63 not named (secondary source, consulted on 21 October 2026)
  12. Mercedes-Benz USA, GLC SUV 2018 owner's manual (“Mercedes-AMG GLC 63 4MATIC/ GLC 63 S 4MATIC” included) (primary source, consulted on 21 October 2026)
  13. Swiss Federal Roads Office (ASTRA), vehicle type record no. 1MH381 (Mercedes-AMG GLC 63 4MATIC+, type 204X, variant R78 (chassis WDC253988), 350 kW, October 2017): permitted tyre and wheel combinations (tyre, width x diameter, offset) and axle loads (primary source, consulted on 21 October 2026)
  14. Swiss Federal Roads Office (ASTRA), vehicle type record no. 1MH379 (Mercedes-AMG GLC 63 4MATIC+, type 204X, variant R88 (chassis WDC253388), 350 kW, October 2017): permitted tyre and wheel combinations (tyre, width x diameter, offset) and axle loads (primary source, consulted on 21 October 2026)
  15. Swiss Federal Roads Office (ASTRA), vehicle type record no. 1MJ679 (Mercedes-AMG GLC 63 4MATIC+, type 204X, variant R78, 350 kW, June 2020): permitted tyre and wheel combinations (tyre, width x diameter, offset) and axle loads (primary source, consulted on 21 October 2026)
  16. Swiss Federal Roads Office (ASTRA), vehicle type record no. 1MJ678 (Mercedes-AMG GLC 63 4MATIC+, type 204X, variant R88, 350 kW, June 2020): permitted tyre and wheel combinations (tyre, width x diameter, offset) and axle loads (primary source, consulted on 21 October 2026)
  17. Swiss Federal Roads Office (ASTRA), vehicle type record no. 1XZ191 (Mercedes-AMG GLC 63 4MATIC+, type 204X, variant R78, 350 kW, December 2022): permitted tyre and wheel combinations (tyre, width x diameter, offset) and axle loads (primary source, consulted on 21 October 2026)
  18. Swiss Federal Roads Office (ASTRA), vehicle type record no. 1MH382 (Mercedes-AMG GLC 63 S 4MATIC+, type 204X, variant R787 (chassis WDC253988), 375 kW, October 2017): permitted tyre and wheel combinations (tyre, width x diameter, offset) and axle loads (primary source, consulted on 21 October 2026)
  19. Swiss Federal Roads Office (ASTRA), vehicle type record no. 1MH380 (Mercedes-AMG GLC 63 S 4MATIC+, type 204X, variant R887 (chassis WDC253388), 375 kW, October 2017): permitted tyre and wheel combinations (tyre, width x diameter, offset) and axle loads (primary source, consulted on 21 October 2026)
  20. Swiss Federal Roads Office (ASTRA), vehicle type record no. 1MJ681 (Mercedes-AMG GLC 63 S 4MATIC+, type 204X, variant R787, 375 kW, June 2020): permitted tyre and wheel combinations (tyre, width x diameter, offset) and axle loads (primary source, consulted on 21 October 2026)
  21. Swiss Federal Roads Office (ASTRA), vehicle type record no. 1MJ680 (Mercedes-AMG GLC 63 S 4MATIC+, type 204X, variant R887, 375 kW, June 2020): permitted tyre and wheel combinations (tyre, width x diameter, offset) and axle loads (primary source, consulted on 21 October 2026)
  22. Swiss Federal Roads Office (ASTRA), vehicle type record no. 1MH647 (Mercedes-AMG GLC 63 S 4MATIC+, type 204X, variant R887, 375 kW, July 2018): permitted tyre and wheel combinations (tyre, width x diameter, offset) and axle loads (primary source, consulted on 21 October 2026)
  23. 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 Mercedes GLC 63 AMG X253 and C253. 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 Mercedes GLC 63 AMG X253 and C253

  • Forged 6061-T6 aluminium
  • 5-axis CNC machining
  • Designed to JWL/VIA standards
  • Fitment worked out for your Mercedes GLC 63 AMG X253 and C253

GLC 63 (X253 and C253): 5x112, a 66.6 mm hub, M14 x 1.5 bolts at 150 Nm

The X253-generation Mercedes-AMG GLC 63 4MATIC+, as an SUV as well as a coupé (C253), the 350 kW GLC 63 and the 375 kW GLC 63 S, whose first Swiss vehicle type records date from October 2017, uses 5x112 on a 66.6 mm hub, with M14 x 1.5 wheel bolts: koleso.ee and tirewheelguide.com give these measurements for the GLC 63, SCC, wheelfitment.eu and hubcentric-rings.com for the X253-generation GLC, each cited in the table. The Mercedes-Benz owner's manual gives a tightening torque of 150 Nm for the bolts. ThreePiece.us gives a centre bore of 66.56 mm, a rounded figure we do not use.

A staggered fitment from 19 to 21 inches, on AMG wheels

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 GLC 63 a staggered fitment, wider at the rear, and only on AMG wheels: 9.5J with an offset of 30 at the front and 10J with an offset of 28 at the rear, in 20 inches (265/45 R20 and 295/40 R20) as well as in 21 inches (265/40 R21 and 295/35 R21), or 8J x 19 with an offset of 19 and 9J x 19 with an offset of 18 (235/55 R19 and 255/50 R19). The GLC 63 S keeps the 19-inch size for winter only: 8J x 19 with an offset of 19 on both axles, on 235/55 R19 tyres. The records distinguish the SUV from the coupé by their chassis number; their fitments are the same.

Two almost equally loaded axles

The records give a permissible load of 1,260 to 1,300 kg on the front axle, and of 1,280 to 1,320 kg on the rear axle for the SUV, 1,290 to 1,330 kg for the coupé: from 630 to 650 kg per wheel at the front, up to 665 kg at the rear. This is the load the wheel must carry, and the rear tyre must keep at least the load index of the original fitment, 110 for 295/40 R20 (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 Mercedes-AMG GLC 63 (X253)

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 Mercedes GLC 63 AMG X253 and C253: free 3D render, on request.

Useful guides

See all generations of the Mercedes GLC 63 AMG, or all Mercedes models.