18×8.5 ET45 Wheels on a 2013 Subaru BRZ

Evidence summary

• Documented builds using 18×8.5: 48
• Documented builds specifically using 18×8.5 ET45: 13
• Axle context: 0 square · 13 staggered · 12 front-only · 1 rear-only · 0 both axles

13 documented 2013 Subaru BRZ builds in our database use 18×8.5 ET45 wheels. This is observed use — not a fit confirmation.

Compared with OEM

Aftermarket: 18×8.5 ET45

Compared with the OEM 18×7.5 ET48 configuration.

Width: +1 in

Outer edge 15.7 mm farther toward fender (more outward poke)

Inner edge 9.7 mm closer to suspension (less inner clearance)

Geometry is deterministic vs the named OEM baseline. It does not mean the setup fits or will clear.

Tires documented with 18×8.5 ET45

• 225/40R18 — 5 builds
• 235/40R18 — 3 builds
• 245/35R18 — 1 build
• 245/40R18 — 1 build

• 225/40R18: +0.0% overall diameter vs selected OEM tire — descriptive only, not a clearance rating.
• 235/40R18: +1.3% overall diameter vs selected OEM tire — descriptive only, not a clearance rating.
• 245/35R18: -1.3% overall diameter vs selected OEM tire — descriptive only, not a clearance rating.
• 245/40R18: +2.5% overall diameter vs selected OEM tire — descriptive only, not a clearance rating.

Documented tire pairings are not tire recommendations.

Suspension, rubbing, fender, and spacers

Suspension on documented builds

• Not recorded — 13

Reported rubbing

• Rubbing reported: 0
• No rubbing reported: 0
• Not recorded: 13

Fender modifications

• Rolled: 0
• Pulled: 0
• No trimming recorded: 0
• Other trimming label: 0
• Not recorded: 13

Spacer data was not recorded on these exact builds.

Counts are descriptive evidence only — not probabilities or clearance guarantees.

Nearby documented setups

Similar evidence — not the same setup.

• 18×8.5 ET448 builds · nearby offset
• 18×8.5 ET433 builds · nearby offset
• 18×8.5 ET483 builds · nearby offset
• 18×8.5 ET385 builds · nearby offset
• 18×8.5 ET355 builds · nearby offset
• 18×8 ET4512 builds · similar size
• 18×8 ET487 builds · similar size
• 18×9 ET454 builds · similar size

Compare this setup with your OEM wheels

Prefills 18×8.5 ET45 on this vehicle in the fitment calculator.

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Related specs

• Bolt pattern: 5x100
• Center bore: 56.1 mm
• Thread: M12 x 1.25
• All documented 18×8.5 offsets for this year
• 2013 Subaru BRZ OEM wheel fitment

Size and offset evidence does not replace bolt pattern, hub bore, or thread requirements.