Tifoso

Forgive the sacrilege, but I'm considering reducing wheel size from 20/21 to 19/20 on my GTS (well, not in my garage yet, but it's due to be delivered at the end of September).

Has anyone done this on a 992? I think the stock 20/21s look fantastic, but I would like to downsize if possible to (a) reduce unsprung weight, (b) improve ride comfort, even marginally, and (c) get a little more protection against wheel damage, with the rough road conditions we have here in New England. I don't have the PCCBs, so I assume brake clearance won't be an issue as long as the spoke design and offsets are appropriate. Given that the design of the 992 contemplated 20/21 wheels from the start, I'm wondering if the 19/20s would look undersized, even though they are still large wheels.....

For those who've done it, please post photos!

AlterZgo

This guy is running 20" all around which I think looks great!

https://rennlist.com/forums/992/1190...l#post17322252

siberian

If you have winters - meaning serious snow, 19/20 is preferable. Don't know how much it impacts (positively) the pocket book

siberian

Mr Bean

Not a sacrilege. The latest craze with bigger wheels and lower profile tires is all about, looks, marketing, and the ability to put large brakes to dissipate heat, thus getting away with cheaper brake materials.

Indy and NASCAR have traditionally had 15 inch wheels. F1 only 13 inch wheels. This helps keep the rotational mass of the wheel low.

They are all now switching to bigger wheels with lower profile tires. For example, in F1 they went from 13 inch wheels to 18 inch wheels in 2022. Lap times are now, on average, 2 seconds slower. They say they are doing it to improve safety, and while there were a number of recent blow outs, the real reason is Pirelli, who is the current manufacturer and sponsor, wants the tires to look more like road tires, so people will recognize them and buy Pirelli for their street cars.

detansinn

I ran 19/20 Carrera winter wheels and 20/21 RS Spyders in the summer. Both sizes are very low profile tires by any measure. Tire pressures have a much greater bearing on comfort than wheel size.

Tobeit

...they want F1 tires to look like road tires so that more people buy them?! Where did you get that info? Very much doubted that but had to Google...and is partially correct to my surprise.

Looks apparently is one thought but more so similarity to road tires for development and testing.

https://www.gearpatrol.com/cars/a38402676/formula-1-18-inch-wheels/#:~:text=And%20it's%20Pirelli%20that%20will,particular%2C%20were%20itchi ng%20to%20make.

Mr Bean

Going from 13 inches to 18 inches increased the rotational mass and the cars are now much slower. The Spanish Gand Prix this year, for example, was two seconds slower per lap. Part of it is also they had to design a heavier suspension to accommodate the lack of give in the lower profile tires. But make no mistake - cars are much slower with the bigger wheels. They didn’t do it to improve the cars.

But not to hijack the thread - to the original question - go with the 19/20 inch wheels. They work and look great. For pictures - just look at the pictures of the base.

doug_999

Did you deleted the lowered suspension? That will help more than the wheels.

and Porsche will sell you a tire and wheel protection package that will cover everthing (well your dealer will).

Then you can just use the 19/20 in the winter.

griss

I actually wanted the 19/20 standard wheels. Because I bought a used 2021 base, I ended up with 20/21's with the gray Spyder wheels. Anyone interested in a trade ?

ZGstar

I'm always all about as-much-sidewall-as-can-clear-the-brake-discs, and I must say that the 19/20" standard wheels are very underrated - they are not small wheels, and I think the configurator makes them look smaller than they are in real life... When my stock Pirellis wear out, I'm 100% going to upsize to 255/40/19 and 305/35/20 tires for a perfect, purposeful look. Cheers!

Tompoodie

I strongly agree that the 19/20 wheels look best but I am in no way impugning anyone who likes the 20/21s.
Like color, it is strongly subjective.
I ordered the base because I want the smaller lighter wheels/rotors/calipers and the smaller quicker turbos. It is unlikely there will be inadequate braking power after changing pads and fluid for the type of driving I will do (canyons, autocross).

Also, if you look at the current 19/20 wheels, and the GT three wheels that have five pairs of spokes, they look awfully similar!

XrussianX

One reason I would argue for the bigger wheels on a 992 over previous gens is the size and proportions of the car are bigger so when you up the wheel size the car “looks” smaller. When I got fatter tires on wife’s suv the ride got noticeably smoother and felt better for the purpose of the suv. I’m sure you can do the same with a 992 and have it in comfort/comfort+ mode at all times