Track Fitment
Track Fitment
Front Setup18x9 ET46265/35-18
Rear Setup18x10.5 ET44295/35-18
Track Fitment reference setup. Verify tire model, camber, brake clearance, and ride height before ordering.
Porsche 981 Cayman GT4 wheel specs and setup guide
Porsche 981 Cayman GT4 Fitment Guide
Use this Porsche 981 Cayman GT4 fitment guide to compare front and rear wheel specs, tire sizes, hub hardware, and fitment types before choosing a setup.
981 Cayman GT4 fitment981 Cayman GT4 fitment guidePorsche 981 Cayman GT4 wheel fitment981 Cayman GT4 wheel specs
Quick answer
What is the best 981 Cayman GT4 fitment?
A popular 981 Cayman GT4 setup is 18x9 ET46 front with 265/35-18 tires and 18x10.5 ET44 rear with 295/35-18 tires. Review the full table for the rest of the combinations people have run, then double-check body width, brake clearance, ride height, and hub hardware before ordering.
Wheel specs
981 Cayman GT4 Wheel Specs
Start with the factory specs before comparing aftermarket 981 Cayman GT4 wheel fitment.
Years2015-2016
Bolt Pattern5x130
Center Bore71.6mm
HardwareM14x1.5
Chassis context
How to Read This 981 Cayman GT4 Fitment Guide
This guide covers popular fitment setups for the Porsche 981 Cayman GT4, plus the factory hub specs that matter when shopping for wheels.
Featured setups are shown first, followed by a broader table of combinations people have run. Use those as a starting point, then confirm tire model, suspension height, alignment, brake package, and body clearance on your car before ordering.
Popular setups
Best 981 Cayman GT4 Wheel Fitment Setups
These 981 Cayman GT4 fitment setups combine the vehicle-specific fitment data with the proven fitment recommendations.
OEM+ Fitment
OEM+ Fitment
Front Setup20x9 ET50245/35-20
Rear Setup20x11 ET50295/30-20
OEM+ Fitment reference setup. Verify tire model, camber, brake clearance, and ride height before ordering.
Performance/Street Fitment
Performance/Street Fitment
Front Setup19x9 ET50245/40-19
Rear Setup19x10.5 ET44285/35-19
Performance/Street Fitment reference setup. Verify tire model, camber, brake clearance, and ride height before ordering.
Fitment type options
Popular 981 Cayman GT4 Fitments People Have Run
These setups are organized by fitment type. Front and rear specs are shown together because the setup works as a full pair, even when the fitment is square.
Fitment TypeFrontRear
Track Fitment18x9 ET46265/35-1818x10.5 ET44295/35-18
OEM+ Fitment20x9 ET50245/35-2020x11 ET50295/30-20
Performance/Street Fitment19x9 ET50245/40-1919x10.5 ET44285/35-19
Aftermarket range
981 Cayman GT4 Fitment Range
Common widths9-11 inches across popular setups
Offset rangeET41-ET50 across popular setups
Popular tires245/35-20, 245/40-19, 255/35-19, 265/35-18, 265/35-19, 285/35-19, 295/30-20, 295/35-18
Fitment notes
What to Know Before Buying 981 Cayman GT4 Wheels
Compare the Full Setup
The 981 Cayman GT4 fitment table keeps front and rear specs together so wheel width, offset, and tire size can be reviewed as a complete setup.
Check Clearance Before Ordering
Wheel width, offset, tire model, alignment, brake package, and ride height can all change clearance. Confirm inner suspension clearance, outer fender clearance, hub fit, and brake caliper clearance before ordering.
Factory sizes
981 Cayman GT4 OEM Wheel Sizes
SizeOffsetNotes
8.5Jx20 front / 11Jx20 rearET61 front / ET50 rearGT4; 245/35ZR20 front, 295/30ZR20 rear.
Buyer notes
981 Cayman GT4 Fitment Tips
- Start with the 981 Cayman GT4 factory hub specs: 5x130 bolt pattern, 71.6mm center bore, and M14x1.5 hardware.
- Compare front and rear specs together, especially on staggered setups where tire diameter and offset balance matter.
- Check brake clearance with the exact wheel design, not just diameter and offset.
- Use the wheel fitment calculator to compare poke, inset, and tire changes against your current setup.
FAQ
981 Cayman GT4 Fitment Guide Questions
What is the best 981 Cayman GT4 fitment?
A popular 981 Cayman GT4 setup is 18x9 ET46 front with 265/35-18 tires and 18x10.5 ET44 rear with 295/35-18 tires. Review the full table for the rest of the combinations people have run, then double-check body width, brake clearance, ride height, and hub hardware before ordering.
What bolt pattern is a Porsche 981 Cayman GT4?
The Porsche 981 Cayman GT4 uses a 5x130 bolt pattern with a 71.6mm center bore and M14x1.5 wheel hardware.
Do I need to verify brake clearance on a 981 Cayman GT4?
Yes. Diameter, width, and offset are not enough by themselves because spoke shape and brake package determine caliper clearance.
Find wheels for your 981 Cayman GT4
Browse the marketplace or compare your current setup against a new 981 Cayman GT4 fitment.