Track Fitment
Track Fitment
Front Setup19x9.5 ET49265/35-19
Rear Setup19x11 ET48305/30-19
Track Fitment reference setup. Verify tire model, camber, brake clearance, and ride height before ordering.
Porsche 718 Cayman GT4 RS wheel specs and setup guide
Porsche 718 Cayman GT4 RS Fitment Guide
Use this Porsche 718 Cayman GT4 RS fitment guide to compare front and rear wheel specs, tire sizes, hub hardware, and fitment types before choosing a setup.
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Quick answer
What is the best 718 Cayman GT4 RS fitment?
A popular 718 Cayman GT4 RS setup is 19x9.5 ET49 front with 265/35-19 tires and 19x11 ET48 rear with 305/30-19 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
718 Cayman GT4 RS Wheel Specs
Start with the factory specs before comparing aftermarket 718 Cayman GT4 RS wheel fitment.
Years2022-2025
Bolt PatternCenter-lock
Center BoreCenter-lock hub
HardwareN/A
Chassis context
How to Read This 718 Cayman GT4 RS Fitment Guide
This guide covers popular fitment setups for the Porsche 718 Cayman GT4 RS, 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 718 Cayman GT4 RS Wheel Fitment Setups
These 718 Cayman GT4 RS fitment setups combine the vehicle-specific fitment data with the proven fitment recommendations.
Performance/Street Fitment
Performance/Street Fitment
Front Setup20x9 ET53245/35-20
Rear Setup20x11 ET50295/30-20
Performance/Street Fitment reference setup. Verify tire model, camber, brake clearance, and ride height before ordering.
Fitment type options
Popular 718 Cayman GT4 RS 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 Fitment19x9.5 ET49265/35-1919x11 ET48305/30-19
Performance/Street Fitment20x9 ET53245/35-2020x11 ET50295/30-20
Aftermarket range
718 Cayman GT4 RS Fitment Range
Common widths9-11 inches across popular setups
Offset rangeET48-ET53 across popular setups
Popular tires245/35-20, 265/35-19, 295/30-20, 305/30-19
Fitment notes
What to Know Before Buying 718 Cayman GT4 RS Wheels
Compare the Full Setup
The 718 Cayman GT4 RS 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
718 Cayman GT4 RS OEM Wheel Sizes
SizeOffsetNotes
8.5Jx20 front / 11Jx20 rearET61 front / ET50 rearGT4 RS center-lock; 245/35ZR20 front, 295/30ZR20 rear.
Buyer notes
718 Cayman GT4 RS Fitment Tips
- This 718 Cayman GT4 RS uses Porsche center-lock hubs rather than a conventional lug-bolt pattern. Confirm wheel compatibility, center-lock hardware, and torque/service requirements before ordering.
- 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
718 Cayman GT4 RS Fitment Guide Questions
What is the best 718 Cayman GT4 RS fitment?
A popular 718 Cayman GT4 RS setup is 19x9.5 ET49 front with 265/35-19 tires and 19x11 ET48 rear with 305/30-19 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 wheel mounting system does a Porsche 718 Cayman GT4 RS use?
The Porsche 718 Cayman GT4 RS uses Porsche center-lock hubs rather than a conventional lug-bolt pattern. Use wheels and hardware designed specifically for the center-lock system.
Do I need to verify brake clearance on a 718 Cayman GT4 RS?
Yes. Diameter, width, and offset are not enough by themselves because spoke shape and brake package determine caliper clearance.
Find wheels for your 718 Cayman GT4 RS
Browse the marketplace or compare your current setup against a new 718 Cayman GT4 RS fitment.