Which 4 measurements decide if a wheel fits?

Match diameter, PCD, center bore and offset (ET). Send your car model or the numbers from your current wheels - fitment is confirmed within 24 hours before any payment.

Can I mix sizes or PCDs in one container?

Yes. Mixed 18-inch fitments ship in one 20ft/40ft container - most wholesale customers combine 2-4 PCD groups per shipment.

Do you ship small trial orders?

Yes. Sample sets of 4 pcs and pallet quantities are available, payable by PayPal or card. Container orders run on T/T 30/70.

Do you export 18-inch wheels to Dubai and Saudi Arabia?

Yes. UAE and Saudi Arabia are our busiest GCC lanes - mixed containers sail to Jebel Ali and Dammam weekly, with SASO certificate and commercial invoice documents issued per shipment.

How are your alloy wheel prices calculated for wholesale buyers?

Pricing is FOB Ningbo per SKU and scales with quantity per model - mixed PCDs and finishes can share one container with no minimum per design. Send your SKU list for a same-day FOB quote.

Do you stock 15, 16 or 17 inch wheels?

Our warehouse program concentrates on 18 inch - the global volume size with the fastest turnover. 15 to 26 inch designs from 4,600+ molds are available on production orders; ask which sizes suit your market.

Can I become a HAIJI wheels distributor?

Yes. We work with importers, dealers and fleet programs on dealer pricing tiers, area protection and sample-set trials before the first container.

BMW 3 Series G20 / F30 Wheel Fitment, Offset (ET) Guide & Wholesale/Custom Forged Wheels

Quick Spec Summary: BMW 3 Series fitments split by generation: G20 (2019+) uses 5×112 with a 66.6 mm center bore, while F30 (2012-2019) uses 5×120 with 72.6 mm. OEM offsets range ET30-ET40. Flush specs: 19×8.5J ET25-ET32 for G20, ET30-ET35 for F30. Both PCD groups are deep in HAIJI spot stock (370+ 5×112 and 110+ 5×120 18″ SKUs), mixable in one container.

Bolt Pattern (PCD)	Target Vehicles	OEM Center Bore (CB)	Recommended Offset (ET)	Load Rating	Spot Stock & Custom Forged Availability
5×112 (G20) / 5×120 (F30)	BMW 3 Series G20 / F30	66.6 (G20) / 72.6 (F30)	G20: 19×8.5J ET25-ET32 / F30: 19×8.5J ET30-ET35	690 kg+ per wheel	18″ cast/flow-formed in stock · 19-22″ forged MOQ 4 pcs (spot-stock)

OEM vs flush fitment — engineering table

Position	OEM (typical range)	Flush aftermarket (recommended)	Tire	Note
Stock (OEM)	G20: 17×8.0J – 19×8.0J ET31-ET40 / F30: 17×8.0J – 19×8.5J ET30-ET36, ET30-ET40 typical	direct replacement sizes stocked	225/45R18 – 255/35R19	Send your trim + brake spec for a 24 h written confirmation
Flush (street)	as above	G20: 19×8.5J ET25-ET32 / F30: 19×8.5J ET30-ET35 F / G20 M340i: 19×9.5J ET25-ET32 R	255/35R19	Two different PCDs across generations – match your chassis before ordering.
Aggressive (off-road / stance)	as above	19×9.5J ET10 (est.)	+10-20 mm wider tire	Fender roll or lift usually required — built via the forged program (MOQ 1 set) with CAD sign-off
Hub & hardware	PCD 5×112 (G20) / 5×120 (F30) · CB 66.6 (G20) / 72.6 (F30) · M14x1.5 / M12x1.5	machined exactly to your bore — no universal shortcuts	—	M340i and M3 conversions aside, standard calipers clear all listed profiles; M Sport brakes verified on request.

Wheel Offset & Custom Forged Calculator — BMW 3 Series G20 / F30

ENGINEERING TOOL

OEM width (J) OEM offset (ET) Target diameter Target width (J) Target offset (ET) Build process

Outer fender position (poke)

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Inner strut clearance change

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Est. weight & lead time

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Matching 18″ spot stock (filtered from live catalog)

Live 18″ spot stock filtered for this platform — full list on WhatsApp. Stock counts change daily.

Model	Size	Offset	PCD	Center Bore	Finish	Fits

Get the full live stock list

Need big-brake clearance, wide-body stance or a unique finish? Our forged lab builds 1-piece and 2-piece 6061-T6 wheels from MOQ 1 set (4 pcs): 3D CAD big-brake clearance drawing in 24 h, FEA load analysis, CNC + custom finish in 15-20 days, door-to-door express. Open the Custom Forged Lab or send your car + brake spec on WhatsApp.

FAQ — BMW 3 Series G20 / F30 wheels

Will a 5×112 wheel fit my F30?

Not safely. F30 is 5×120, G20 is 5×112. Wobble bolts exist but we do not recommend them for performance driving – match PCD to chassis.

What offset for a flush G20 on 19s?

19×8.5J ET25-ET32 front with 255/35R19; M340i rear can take 19×9.5J ET25-ET32.

Which F30 wheels fit an F22/F33?

Same 5×120 CB72.6 hub – the fitment table carries over across BMW F-platform rear-wheel-drive models.

How is fitment confirmed before I pay?

Send your car model, year and (if known) your current wheel specs. We return a written fitment confirmation — PCD, bore, offset, load rating and brake clearance — within 24 hours, before any payment.

Can I mix this fitment with other PCDs in one container?

Yes — mixed-PCD loading is our standard: combine 2-4 fitment groups per 20GP (~300 pcs) or 40HQ (~720 pcs), one B/L, one inspection certificate.