Shop Exact-Fit 1978 BMW 6 Series Wheels & Custom Rims
Showing compatible wheels for the 1978 BMW 6 Series (640i, 650i) matching 5x120 bolt pattern, 18, 19, and 20 inch diameters, and 8"–9" widths from Niche 1PC, Axe Wheels, Weld, Vision. Filter by rim size, width, or finish and build a complete wheel & tire package.
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TW ASCENT 20X8.5 5X120 +35 76 M-TTNM SLV
TW CHRONO 19X9 5X120 +15 76 M-BLK DDT
1978 BMW 6 Series Wheel Fitment Specs: 18"–20" Rim Sizes, 8"–9" Widths & 5×120 PCD
Every aftermarket wheel shown above is pre-filtered for the 1978 BMW 6 Series (III LCI (F06/F12/F13)). By matching your 1978 BMW 6 Series lug pattern (5×120), compatible rim diameters (18, 19, and 20 inch), and 8", 8.5", 9" widths against inventory from Niche 1PC, Axe Wheels, Weld, Vision, Black Rhino, 1AV, you can choose custom rims with confidence or build a complete 1978 BMW 6 Series wheel and tire package.
| Specification | Verified Fitment Details |
|---|---|
| Vehicle & Year | 1978 BMW 6 Series (III LCI (F06/F12/F13)) |
| Trims Covered | 640i, 650i, 640i xDrive, 650i xDrive |
| Bolt Pattern (PCD) | 5×120 |
| Supported Diameters | 18", 19", 20" |
| Supported Widths | 8", 8.5", 9" (staggered fitment supported) |
| Center Bore | 72.6 mm |
| Offset (ET) Range | ET30–ET44 |
| Verified Tire Sizes | 245/45R18 100V, 245/40R19 98V, 245/35ZR20 95Y, 275/30ZR20 97Y, 245/45ZR18 96Y, 275/40ZR18 99Y |
| Compatible Brands | Niche 1PC, Axe Wheels, Weld, Vision, Black Rhino, 1AV |
1978 BMW 6 Series Rim Sizes & Wheel Construction Guide
Popular wheel fitments include 18 inch wheels for 1978 BMW 6 Series, 19 inch wheels for 1978 BMW 6 Series, 20 inch wheels for 1978 BMW 6 Series matched to 8"–9" widths and 5×120 bolt patterns. Many performance setups pair wider rear wheels with high-clearance spoke profiles—forged, flow-formed, and cast alloy rims from Niche 1PC, Axe Wheels, Weld, Vision, Black Rhino, 1AV are compatible as long as front/rear offsets, brake caliper clearance, and load ratings match.
1978 BMW 6 Series Wheel & Fitment FAQs
What is the exact wheel bolt pattern, hub bore, and lug specification for the 1978 BMW 6 Series?
The 1978 BMW 6 Series is engineered with a 5×120 bolt pattern and a 72.6 mm center bore and accommodates wheel diameters of 18"–20" with rim widths of 8"–9". Installing hub-centric wheels guarantees zero highway vibrations.
Do different 1978 BMW 6 Series trims share the same wheel size and brake clearance?
Across 1978 BMW 6 Series trims (640i, 650i, 640i xDrive), compatible wheels span 18"–20" in diameter and 8"–9" wide with offsets around ET30–ET44 (5×120 bolt pattern). Higher trims equipped with upgraded sport brakes require larger wheel diameters to clear the calipers.
Should I choose a square or staggered wheel setup for the 1978 BMW 6 Series?
The 1978 BMW 6 Series supports both square fitments (identical widths front and rear for rotational longevity) and staggered fitments (8"–9" front and rear widths) for enhanced rear grip and stance on 18"–20" wheels.
What factory and plus-sized tire sizes fit the 1978 BMW 6 Series?
Recorded compatible tire sizes for the 1978 BMW 6 Series include 245/45R18 100V, 245/40R19 98V, 245/35ZR20 95Y, 275/30ZR20 97Y, 245/45ZR18 96Y on 18"–20" wheels. When building a package, our fitment engine confirms exact tire aspect ratios for your selected rim width.