Porsche 991 GTS Center-Lock wheel specs and setup guide

Porsche 991 GTS Center-Lock Fitment Guide

Use this Porsche 991 GTS Center-Lock fitment guide to compare front and rear wheel specs, tire sizes, hub hardware, and fitment types before choosing a setup.

2015-2019 | Center-lock | Center-lock hub

991 GTS Center-Lock fitment991 GTS Center-Lock fitment guidePorsche 991 GTS Center-Lock wheel fitment991 GTS Center-Lock wheel specs

Quick answer

What is the best 991 GTS Center-Lock fitment?

A popular 991 GTS Center-Lock setup is 19x9.5 ET48 front with 255/35-19 tires and 19x12 ET46 rear with 315/30-19 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

991 GTS Center-Lock Wheel Specs

Start with the factory specs before comparing aftermarket 991 GTS Center-Lock wheel fitment.

Years2015-2019
Bolt PatternCenter-lock
Center BoreCenter-lock hub
HardwareN/A

Chassis context

How to Read This 991 GTS Center-Lock Fitment Guide

This guide covers popular fitment setups for the Porsche 991 GTS Center-Lock, 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

These 991 GTS Center-Lock fitment setups combine the vehicle-specific fitment data with the proven fitment recommendations.

Track Fitment

Track Fitment

Front Setup19x9.5 ET48255/35-19
Rear Setup19x12 ET46315/30-19

Track Fitment reference setup. Verify tire model, camber, brake clearance, and ride height before ordering.

Performance/Street Fitment

Performance/Street Fitment

Front Setup19x9 ET50245/35-19
Rear Setup19x12 ET46305/30-19

Performance/Street Fitment reference setup. Verify tire model, camber, brake clearance, and ride height before ordering.

Fitment type options

Popular 991 GTS Center-Lock 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 ET48255/35-1919x12 ET46315/30-19
Performance/Street Fitment19x9 ET50245/35-1919x12 ET46305/30-19

Aftermarket range

991 GTS Center-Lock Fitment Range

Common widths9-12 inches across popular setups
Offset rangeET41-ET50 across popular setups
Popular tires245/35-19, 245/35-20, 255/35-19, 305/30-19, 305/30-20, 315/30-19

Fitment notes

What to Know Before Buying 991 GTS Center-Lock Wheels

Compare the Full Setup

The 991 GTS Center-Lock 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

991 GTS Center-Lock OEM Wheel Sizes

SizeOffsetNotes
9Jx20 front / 12Jx20 rearET51 front / ET63 rear991 GTS center-lock representative; 245/35ZR20 front, 305/30ZR20 rear.

Buyer notes

991 GTS Center-Lock Fitment Tips

  • This 991 GTS Center-Lock 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

991 GTS Center-Lock Fitment Guide Questions

What is the best 991 GTS Center-Lock fitment?

A popular 991 GTS Center-Lock setup is 19x9.5 ET48 front with 255/35-19 tires and 19x12 ET46 rear with 315/30-19 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 991 GTS Center-Lock use?

The Porsche 991 GTS Center-Lock 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 991 GTS Center-Lock?

Yes. Diameter, width, and offset are not enough by themselves because spoke shape and brake package determine caliper clearance.

Find wheels for your 991 GTS Center-Lock

Browse the marketplace or compare your current setup against a new 991 GTS Center-Lock fitment.