Custom Finish 2-Piece Forged Wheels
2-Piece · Custom Finish
2026 Rivian R2 Wheels & Rims: Bolt Pattern, Offset & Sizes
Fitting Rivian R2 wheels? This page gives the 2026 Rivian R2 bolt pattern (5x114.3), centre bore, factory rim size and the offset range for aftermarket and forged Rivian R2 rims: the same spec sheet ANKUSI uses when machining forged wheels for this car.
Quick answer: The 2026 Rivian R2 uses a 5x114.3 bolt pattern with a 64.1 mm centre bore and M14x1.5 lug thread. Factory wheels: 20x8J at ET38, front and rear, with 21x8.5J at ET38 on the Performance model. For aftermarket wheels, 20x8.5J ET33 sits flush and 21x9J ET28 is the most aggressive fit.
Forged wheels for the 2026 Rivian R2 — drilled 5x114.3 with a 64.1 mm centre bore, built to the offset you choose. From $220 per wheel, made to order in 20–25 days.
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Rivian R2 (2026): 5x114.3 bolt pattern, 64.1mm center bore. Factory wheels: 20x8J at ET38 offset. Reference fitment ranges.
Bolt Pattern5x114.3
Wheel Bolt/NutM14x1.5 Lug Nut
Center Bore64.1mm
Wheel Load Rating900–1250 kg/wheel (SUV segment reference)
Caliper TypeFactory brake package (confirm clearance before ordering)
Year2026
CategorySUV
OE Wheel Size20x8J
OE OffsetET38
✓ Data check: the bolt pattern and center bore on this page match an independent fitment reference. Last reviewed October 19, 2026. How we verify
Wheel Size & Offset at a Glance
| Configuration | Wheel Size & Offset |
|---|---|
| Factory (OE) | 20x8J at ET38, front and rear, with 21x8.5J at ET38 on the Performance model |
| Flush Fitment | F 20x8.5J ET33 / R 20x8.5J ET33 |
| Maximum Aggressive | F 21x9J ET28 / R 21x9J ET28 |
Forged Wheel Designs for the Rivian R2
Every design below is forged to order, so it can be machined to the Rivian R2's 5x114.3 bolt pattern and 64.1 mm center bore, with the width and offset calculated for your setup.
Satin Black 10-Spoke Concave Forged Wheels
Concave · Satin Black
Vossen-Style Brushed Silver 5 Y-Spoke Forged Wheels
Monoblock · Brushed Silver
Rays-Style Gloss Black 10-Spoke Forged Wheels
Replica · Gloss Black
HRE P200-Style Silver 12 Y-Spoke Forged Wheels
Replica · Silver
Mirror Polished 5-Spoke 3-Piece Forged Wheels
Monoblock · Mirror Polished
Vossen Chrome 5-Spoke Cut-Out Forged Wheels
Replica · Chrome
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
On a vehicle this heavy, the wheel is a structural part before it is a styling part - it carries the load, the brake heat and the cornering forces all at once. A forged wheel buys back unsprung weight without giving up the load rating an SUV actually needs, which is the one number most cast aftermarket wheels quietly fall short on.
The Rivian R2 runs a 5x114.3 bolt pattern, 64.1mm center bore, and a 20x8J ET38 wheel front and rear from the factory. Our Flush Fitment reference is F 20x8.5J ET33 / R 20x8.5J ET33, which tucks the tire under the fender lip on a stock-height Rivian R2. Our Maximum Aggressive reference is F 21x9J ET28 / R 21x9J ET28 - beyond that offset, expect rubbing against the inner fender liner under compression without further trimming.
Rivian R2 OE Wheel Specs
The 2026 Rivian R2 (SUV) uses a 5x114.3 bolt pattern with a 64.1mm center bore. Factory wheels are 20x8J at ET38, front and rear, with 21x8.5J at ET38 on the Performance model.
Why the factory spec works for most owners:
- Supports the vehicle's curb weight and load capacity
- Preserves ground clearance for everyday and light off-road use
- Balances ride comfort with cargo and passenger stability
- Maintains clearance for the factory suspension travel and brake package
ANKUSI builds these wheels — we are the forging factory, not a reseller. For the Rivian R2 (2026) we drill the 5x114.3 pattern and cut the centre bore to 64.1mm 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 — 10,093 vehicles, free to download, CC BY 4.0.
Real-World Fitment Notes
Rivian R2 (2026 to 2027 launch years). Premium trims run 20x8J ET38 with 255/60R20; Performance runs 21x8.5J ET38 with 255/55R21. The ET38 and 64.1 mm bore are also stamped on the back of the factory wheels.
Offset & Backspacing Reference
Backspacing is calculated as wheel width (in) ÷ 2 + offset (mm) ÷ 25.4 + 0.5 (flange allowance):
- OE: F 20x8J ET38 → ~6″ F backspacing, R 20x8J ET38 → ~6″ R backspacing
- Flush: F 20x8.5J ET33 → ~6.05″ F backspacing, R 20x8.5J ET33 → ~6.05″ R backspacing
- Max: F 21x9J ET28 → ~6.1″ F backspacing, R 21x9J ET28 → ~6.1″ R backspacing
A Note on Clearance
Final clearance depends on the exact tire model, suspension height, brake package, alignment and vehicle tolerances. A physical test fit is recommended before production.
Want to check a different width or offset before you order? Use our Offset & Backspacing Calculator to solve the numbers yourself, or looking for your exact Rivian spec, or want a wheel built to a custom offset for your Rivian R2? Contact ANKUSI with your bolt pattern and offset target and we will confirm the correct forged wheel spec for your build.
Frequently Asked Questions
What bolt pattern (PCD) does the Rivian R2 use?
The 2026 Rivian R2 uses a 5x114.3 bolt pattern.
How many lug bolts does the Rivian R2 use?
The Rivian R2 uses a 5-lug bolt pattern (5x114.3), so you need a 5-lug forged wheel to bolt straight on.
What is the center bore size on the Rivian R2?
The Rivian R2's center bore is 64.1mm. If an aftermarket wheel has a larger center bore than this, hub-centric rings are recommended so the wheel centers on the hub itself rather than relying on the lug bolts alone.
What size are the factory (stock) wheels on the Rivian R2?
Factory wheels on the Rivian R2 are 20x8J at ET38, front and rear, with 21x8.5J at ET38 on the Performance model.
What is the biggest wheel size I can fit on my Rivian R2 without rubbing?
The most aggressive fitment we recommend without fender work is F 21x9J ET28 / R 21x9J ET28. Going beyond this typically causes rubbing under compression unless you roll the fenders or add camber correction.
What does a flush wheel fitment look like on the Rivian R2?
For a flush look with minimal to no rubbing, we recommend F 20x8.5J ET33 / R 20x8.5J ET33 as a starting point on a stock or mildly lowered Rivian R2.
Do I need wheel spacers for my Rivian R2?
No. ANKUSI forges each wheel to your exact target offset, including the flush or max specs above, so you get the correct fitment without stacking spacers. Spacers are typically only used to push out an existing OE-offset wheel without replacing it, which isn't necessary when you're ordering a custom-offset forged wheel.
How do I calculate wheel backspacing for my Rivian R2?
Backspacing (in inches) = wheel width (in) ÷ 2 + offset (mm) ÷ 25.4 + 0.5 (flange allowance). For example, the flush spec above works out to roughly 6.05" backspacing up front and 6.05" in the rear.
What's the difference between wheel offset and backspacing?
Offset is the distance in millimeters from the wheel's true centerline to its mounting face (positive offset pulls the wheel in, negative pushes it out). Backspacing is the distance in inches from the mounting face to the back edge of the wheel barrel. They describe the same fitment from two different reference points, which is why ANKUSI lists both above — some shops and tuning guides quote offset, others quote backspacing.
Can I run staggered wheels (different sizes front and rear) on my Rivian R2?
Yes — the Rivian R2's factory and our recommended flush/max fitments already use staggered sizing (different width front and rear), and ANKUSI can forge matching staggered sets to your target offsets.
Bolt pattern and center bore on this page were cross-checked against at least two independent sources before publication. Last reviewed 2026-10-19. Spotted an error? Email info@ankusi.com and we will verify and correct it.