[JohnnyG9]

Keep in mind also that rubber will be more expensive for 19 inch wheels vs 20. 19's are becoming a less desirable size and odd ball so to speak.

I agree the industry will continue marching toward larger wheel sizes, but for the near future, the 19"s are definitely less expensive than 20s, in similar widths. 19s are not going away anytime soon - still very popular. Also, for 981 there is a much better selection of Summer, Extreme Summer, and R-comp tires in 19s.

 

[JohnnyG9]

Apex is doing a Group buy on their new 19" wheel, right now (Cayman/Boxter fitments). Fantastic wheels, opportunity for great price.

APEX 19” SM-10 Porsche Cayman/Boxster Wheels

Strong, lightweight, affordable wheels optimized for Cayman/Boxster chassis including GT4

www.gangup.com

Also, they have complied an excellent fitment guide for 981 here:

981 Cayman/Boxster Wheel & Tire Fitment Guide

For 2012-2016 Porsche 981 Cayman and Boxster chassis View all 981 Cayman/Boxster Images Vehicle Covered in this Guide2012-2016 Porsche Cayman/Boxster chassis including Base, S & GTS models. ...

support.apexraceparts.com

This will show you many of the options in tire sizes.

 

[JohnnyG9]

Here's my CGTS, with X73.

19" Apex SM-10 in Anthracite: 255/35/19 F; 285/35/19 R

Check out the group buy on these, live now: APEX 19” SM-10 Porsche Cayman/Boxster Wheels