Buick Roadmaster (1996) Bolt Pattern & Wheel Fitment
Buick Roadmaster (1996): 5x127 bolt pattern, 78.1mm center bore. Factory wheels: 15x7J F/R. Aftermarket flush/max data coming soon.
✓ Verified by ANKUSI's Engineering Team — IATF 16949 & ISO 9001 certified forged wheel manufacturer, TÜV/SFI/VIA compliant. See our factory & certifications →
How to Read Wheel Offset & Measurements
Use these two references before ordering: the left diagram shows where each spec (PCD, center bore, offset, width and diameter) is measured on the wheel; the right diagram shows how positive, zero and negative offset shift the wheel face relative to the hub centerline.
ANKUSI Engineering Expert Advice
A big saloon lives or dies on ride quality, and the wheel is the first thing that ruins it. Going wider and lower without watching load rating and offset trades away exactly the composure you paid for. Forging lets you add diameter and width while keeping rotating mass close to the factory figure.
We publish the factory specification for the Buick Roadmaster below. We have not yet been able to verify aftermarket flush or maximum-aggressive offsets for this exact variant against a source we trust, so we are not listing any - an invented offset is worse than no offset when a wheel has to clear a caliper.
Buick Roadmaster OE Wheel Specs
The 1996 Buick Roadmaster (Performance Sedan) uses a 5x127 bolt pattern with a 78.1mm center bore. Factory wheels are 15x7J F/R.
Why the factory spec works for most owners:
- Keeps unsprung weight low to preserve the factory handling balance
- Matches the wider, performance-oriented tire sizing typical of this platform
- Maintains clearance for the factory brake package and suspension geometry
- Balances grip with ride comfort for daily and spirited driving
ANKUSI builds these wheels — we are the forging factory, not a reseller. For the Buick Roadmaster (1996) we drill the 5x127 pattern and cut the centre bore to 78.1mm on our own CNC line, so the wheel hub-centres on the car with no spacer rings, in whatever diameter, width and offset you specify.
Converting these ET figures to backspacing? Use the wheel offset and backspacing calculator.
The figures on this page are part of our open wheel fitment dataset — 6,436 vehicles, free to download, CC BY 4.0.
Aftermarket Fitment Data — Coming Soon
Published aftermarket fitment for this exact variant is still thin, so we have not committed to a flush or maximum-aggressive figure. Our engineering team is still collecting verified data for this variant. In the meantime the factory specification above is accurate and is the safe reference point for ordering.
Need a wheel for this car now? Contact ANKUSI with your target diameter, width and offset and our engineers will confirm the correct forged spec against your brake package before anything is cut. You can also use our Offset & Backspacing Calculator to work through the numbers yourself.
Custom Forged Wheels for the Buick Roadmaster (1996)
Everything above is reference data. If you want wheels actually built to it, that is what ANKUSI does: we are a forged wheel factory in Guangzhou, China, IATF 16949 and ISO 9001 certified, forging on our own 10,000-ton press and producing over 120,000 wheels a year. Forging blank, CNC machining, finishing, coating and inspection all happen in the same building — nothing is subcontracted and nothing is relabelled from another manufacturer.
Every set is cut to order, so the 5x127 pattern and the 78.1mm centre bore are machined for this car specifically rather than shimmed with adaptor rings. Diameter, width, offset, concavity, monoblock or multi-piece construction and the finish are all yours to choose.
Designs we already tool for the 5x127 pattern — each one is re-cut to your sizes and offsets:
Matte Silver Full-Face Deep Lip Off-Road Forged Wheels – Land Rover Range Rover / Toyota Land Cruiser Fitment (5-Lug)
Jeep Clear Bronze Tint Mesh Multi-Spoke Forged Wheels – Jeep Wrangler Moab 392 Fitment (17-22in, 5×127)
SWE Gold 6-Spoke Y-Design Forged Wheels – Jeep Wrangler Moab 392 Fitment (17-20in, 5×127 & 6×139.7)