What bolt pattern does the Subaru WRX use?

It depends on the year, and the boundary is later than most owners expect. The base WRX from 2002–2014 — GD, GE/GH, and the 2011–2014 widebody GV/GR — uses a 5x100 bolt pattern the whole way through; it doesn't move to 5x114.3 until the 2015 VA generation, and it stays 5x114.3 through the VB (2022+). The US-market STI is 5x100 for its first year (2004) only, then 5x114.3 from 2005 on. This is the single most common WRX fitment mistake — a 5x100 wheel will not bolt to a 5x114.3 car and vice versa. Confirm your car's exact year before you buy a used set.

What offset should I run on a WRX?

Factory WRX wheels are high positive offset, roughly +48 to +55mm on the common 17x8 and 18x8.5 sizes, which tucks the wheel neatly under the fender. Most owners chasing a flush look drop to somewhere around +38 to +45mm on a similar-width wheel, which pushes the face outward without rubbing on a stock-height car. Go lower (more poke) and you start fighting fender liners, camber, and ride height. There's no single 'correct' number — it's a function of wheel width, tire width, and how low the car sits, so always check a fitment database for your exact setup.

What is the WRX hub bore and lug thread pitch?

Subaru uses a 56.1mm center bore, so aftermarket wheels with a larger bore need hub-centric rings to center properly and avoid vibration. Lug hardware is 12x1.25 thread pitch across the WRX line. If you run wheels with recessed lug seats or add spacers, budget for the correct extended or spacer-specific lug nuts — don't reuse factory nuts on a spacer that needs longer engagement.

Will bigger wheels or a lower offset make my WRX rub?

They can. Rubbing comes from the combination of wheel width, offset, tire width and sidewall, and ride height — change any one aggressively and the tire can catch the fender lip or inner liner at full lock or over bumps. A mild flush setup on a stock-height car usually clears; add lowering springs or coilovers and the same wheel may need a fender roll, a slightly narrower tire, or a touch more offset. Model the whole package together, not one spec at a time.

WRX Wheel & Tire Fitment Guide: Bolt Pattern, Offset, Backspacing & Tire Sizes

Wheels are the fastest way to transform how a WRX looks and, done right, how it drives — lighter rotating mass sharpens acceleration and steering. Done wrong, they rub, sit ugly, vibrate, or simply won’t bolt on. Wheel fitment isn’t guesswork once you know the five numbers that describe every wheel, so this guide walks through each one for the WRX specifically, then points you to new wheels on Amazon and the deep used-and-OEM market on eBay Motors. Pair it with the WRX generations & fitment guide to nail down which chassis you’re shopping for first.

The one that trips everyone up: bolt pattern

Before anything else, get your bolt pattern right — it’s the number of lugs and the diameter of the circle they sit on, and it’s a hard yes/no on whether a wheel physically mounts.

WRX generation	Bolt pattern
GD base WRX (2002–2007)	5x100
GD STI (2004 only)	5x100
GD STI (2005–2007)	5x114.3
GE/GH base WRX (2008–2010)	5x100
GV/GR base WRX (2011–2014, widebody)	5x100
GR/GV STI (2008–2014)	5x114.3
VA WRX (2015–2021)	5x114.3
VB WRX (2022–present)	5x114.3

The takeaway: base WRX cars stay 5x100 all the way through the 2011–2014 widebody car; only the VA/VB WRX (2015 on) is 5x114.3. The STI is 5x100 for its first year, 2004, then 5x114.3 from 2005 on. (5x114.3 is sometimes written 5x4.5”.) A wheel in the wrong pattern will not bolt on — no adapter shortcut is worth trusting for a daily driver. This is also why STI wheels don’t drop straight onto a same-generation base WRX, a fitment gotcha we flag in the generations guide.

Watch the STI/WRX split within a generation, not the model-year number: a 2013 WRX and a 2013 STI sit in showrooms together but take different wheels. Full year-by-year table, plus how to measure the pattern on your own hub, in the WRX bolt pattern reference.

Hub bore and lug hardware

Two smaller numbers that still matter:

Center bore: 56.1mm. The WRX centers the wheel on the hub, not the lugs. Aftermarket wheels are often machined to a larger, universal bore, so they need hub-centric rings to seat concentrically — skip them and you’ll chase a vibration that no balance job fixes.
Lug thread pitch: 12x1.25. Buy lug nuts (and any locking sets) in this pitch. Recessed aftermarket lug seats and spacers usually require extended or spacer-specific lug nuts for correct thread engagement — don’t reuse factory nuts where they no longer bite fully.

Offset and backspacing — where the wheel sits

Offset (marked “ET” in millimeters) is the distance from the wheel’s mounting face to its true centerline. Higher positive offset pulls the wheel inward under the fender; lower offset pushes it outward toward the fender edge (the “poke” look). Backspacing describes the same geometry from the back: the distance from the mounting face to the inboard rim edge — the number that governs inner clearance against struts, brakes, and suspension arms.

For the WRX:

Factory offset is high — roughly +48 to +55mm on the common 17x8 and 18x8.5 factory sizes, which tucks the wheel neatly inside the arch.
A clean flush setup on a stock-height car typically lands around +38 to +45mm on a similar-width wheel — more presence, still civilized.
Aggressive poke (lower offset, wider wheel) looks great parked but demands attention to camber, fender rolling, and tire choice to live with on the street.

There’s no universal “right” offset — it’s the product of wheel width, tire width, and ride height together. When you lower the car, the top of the tire tucks further into the arch, so a wheel that cleared at stock height can suddenly rub. If a drop is in your plans, read the suspension & coilover guide alongside this one and model the whole package — and if you’re not sure what’s under the car in the first place, WRX suspension explained covers the layout generation by generation.

Wheel width and diameter

WRX owners run everything from 17x8 (a favorite for winter and grippy 200-treadwear track tires with taller sidewall) up through 18x8.5 and 18x9.5 flush and track setups. Wider isn’t automatically better:

17s put more sidewall over the same overall diameter — better ride, cheaper high-performance tires, and a common choice for track and autocross use.
18s are the modern default: sharper turn-in, a huge tire selection, room for big-brake clearance.
Width must match tire width and offset so the tire neither stretches oddly nor pokes past the fender.

Keep the overall diameter close to stock so your speedometer, ABS, and gearing stay honest — that’s what the tire sidewall is for.

Reading a WRX tire size

A size like 245/40R18 decodes as:

245 — tread width in millimeters.
40 — aspect ratio: sidewall height is 40% of the tread width.
R18 — radial construction on an 18-inch wheel.

Common WRX stock sizes are 235/45R17 (base 17” cars) and 245/40R18 (18” trims); the VB (2022+) ships 245/40R18. If you go wider or change wheel diameter, adjust the aspect ratio to hold roughly the same overall diameter — for example, stepping up rim size means a shorter sidewall to compensate. Plus-sizing calculators make this trivial; the goal is to keep the rolling circumference within a couple percent of stock.

Spacers: a legitimate tool, used carefully

A wheel spacer moves the wheel outward, effectively lowering the offset without buying new wheels — handy to fine-tune fitment or clear a big-brake kit. Rules that keep it safe:

Use hub-centric spacers that match the 56.1mm bore and 5x100 or 5x114.3 pattern for your car.
Anything past a slim spacer should be a bolt-on type with its own studs, plus the correct extended lugs.
Re-torque after the first drive, and expect slightly heavier steering and more strain on wheel bearings the further out you go.

Used OEM wheels plus a modest spacer is one of the best-value flush setups on a WRX — and both live on eBay Motors, linked below.

How to buy wheels and tires for your WRX

New wheels, tires, spacers, hub rings, and lug hardware: Amazon Automotive — browse the wheels & tires category.
Used and OEM WRX/STI wheels (often the cheapest path to a staggered or flush setup): eBay Motors, via the search buttons below.

Nail the bolt pattern first, keep the 56.1mm bore centered, pick an offset that suits your ride height, and hold your overall diameter near stock — do that and your new wheels will clear, sit right, and actually make the car better. From here, dial in the stance with the suspension guide or confirm your chassis in the generations & fitment guide.