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Why Put a 1-Inch Spacer on Your Subaru

If your Impreza, Forester, or Outback sits too deep in its fenders, or your tires rub at full lock, spacing the wheels out fixes both problems in one move. The 2X 1 inch Thick Wheel Spacers 5x100 12x1.25 push each wheel out by exactly 1 inch — 25mm — off a stock 5x100 Subaru hub.

The fitment numbers are fixed and simple: 5x100mm bolt pattern, 12x1.25 thread pitch, 56.1mm hub-centric center bore. You get two spacers per package, machined from 6061-T6 aluminum alloy for strength without extra weight.

Specifications at a Glance

Measure your studs and hub against this table before you order.

What You Get Out of 25mm

More grip, less body roll

Pushing the wheels out widens the track by an inch per side. A wider track leans less in corners and holds its line better during high-speed maneuvers. You feel it the first time you take an on-ramp with intent.

A wider, planted stance

One inch is the sweet spot for most Subaru builds. It pulls the wheel face out flush with the fender without pushing the tire past the bodywork. You get the muscular, sporty look people chase with expensive wheels — without buying new wheels.

No more rubbing

Bigger tires and certain offsets cause the tire to contact the wheel well or suspension on turns. The extra clearance moves the tire away from those contact points, so the wheel turns freely through full lock.

Hub-centric means no vibration

Lug-centric spacers let the wheel float on the studs, and you feel that as shake at speed. These use a 56.1mm center bore that seats on the hub, so the wheel centers exactly like it does without a spacer and the load spreads evenly across all five studs.

Which Subarus These Fit

The 5x100 bolt pattern is the gate. If your hub has five studs on a 100mm circle, these spacers are engineered for it:

• Subaru Impreza — most models
• Subaru Forester — 2014-2018 and compatible years
• Subaru Outback — models with the 5x100 bolt pattern
• Other Subaru vehicles on a 5x100 hub

Count your studs and measure across the circle before you install anything. Two minutes with a tape measure protects you from ordering the wrong pattern.

Installation, Step by Step

You need a jack, a torque wrench, and about an hour. Work on one wheel at a time on level ground.

1. Park safe: level ground, parking brake engaged.
2. Lift the vehicle: jack up the corner you are working on.
3. Pull the wheel: loosen the lug nuts and remove the wheel.
4. Clean the hub: remove rust and debris from the brake disc hub.
5. Seat the spacer: align it with the bolt pattern and place it on the hub.
6. Hand-tighten: snug the spacer down with the provided hardware.
7. Remount the wheel: tighten the lug nuts in a star pattern.
8. Torque: to manufacturer specifications, typically 70-80 ft-lbs.

Studs, Torque, and Rechecks

A 1-inch spacer usually needs longer wheel studs so the lug nuts still bite enough threads. Before you drive, check that every lug nut has sufficient thread engagement — this is the step people skip and regret.

Torque the lug nuts to the manufacturer specification for your vehicle, typically 70-80 ft-lbs, working in a star pattern. Check the torque periodically after the install, not just once.

Keeping Them Safe Long Term

Spacer maintenance takes minutes:

• Inspect each spacer for cracks, corrosion, or deformation whenever the wheels come off
• Check torque specifications periodically
• Ensure proper alignment during tire rotations

Any crack or deformation takes the spacer out of service. Aluminum does not bend and come back.

Need Four Corners Instead of Two?

This package covers two wheels. If you want all four corners spaced, the 4 Pcs 1" 5x100 Wheel Spacers 12x1.25 set covers Impreza, Forester, Legacy, and Outback — a full car in one box, with Legacy added to the fitment list.

Prefer hub-centric on all four? The 4 Pcs 1" 5x100 Hub Centric set does the same job for Forester, Impreza, and BRZ owners.

And if your 2009-2013 Forester or Impreza hums at highway speed, spacers will not fix it — that noise usually points to a bearing. The full-set front and rear wheel hub bearing guide for AWD Forester and Impreza walks through that repair.

For everything else in the category — hubs, bearings, lug hardware, tires — browse the full Wheels, Tires & Parts collection.

Not Sure It Fits? Ask First

Send your vehicle year, model, and wheel specs through the request-for-quote page, email support@koeep.com, or message us on WhatsApp. You get a straight answer on stud length and fitment before you spend money.

Frequently Asked Questions

The Bottom Line

The 2X 1 inch Thick Wheel Spacers 5x100 12x1.25 do three jobs at once: a wider track for better cornering, flush wheels for the stance you want, and clearance for bigger tires — all from a hub-centric 6061-T6 aluminum pair that bolts onto a stock 5x100 Subaru hub.

Install with the eight steps above, run longer studs if your thread engagement is short, torque to 70-80 ft-lbs, and re-check torque now and then. That is the whole recipe.