solipsism

Hello, new forum member here. My SO has purchased a SQ5. Expecting delivery within a week or so.

Our model is coming with the 21" Optional tires in which we never really had a choice. The roads where I live in Northern Alberta are far too crappy for that low of an aspect ratio for her tastes. I drive an Evo X with a 265/35 so I know what she means.

Anyhow to the point: I am looking to see if the stock wheel size from the regular Q5 will fit and clear the calipers etc.

I am looking for hopefully 18's in a narrow wheel for winter. Anyone have any ideas? I will be buying an aftermarket winter wheel/tire combo.

We will be replacing the 21"s for summer as well but that can wait until spring. (Probably with 19s or 20s.

josedebardi

You need at least 19s to get over the larger SQ callipers.

Take a look over the last few weeks posts in this forum as there are a few threads discussing this exact topic in detail.

josedebardi

And welcome!

solipsism

Alright I did a quick search but came up with mostly Q5 results. Sorry for the poor netiqeutte.

koobah

Yes, 19" but offset is important as well

josedebardi

No worries! I sometimes find the collective community search more efficient as well!

This one has lots of good info;
https://www.audiworld.com/forums/sho....php?t=2853394

spijun

From Audi:

https://www.audiworld.com/forums/sho...3&postcount=11

solipsism

Thanks guys. I will post in the https://www.audiworld.com/forums/sho...ght=SQ5+winter thread now since it is the most pertinent.

MP4.2+6.0

The 19" stuff on SQ's remains internet echo as far as I know. I have not seen a single post yet where anyone has first person tried to fit either 19's, or especially 18's on it. Nor has there been an answer to my simple suggestion someone spend about 30 seconds and look at what size spare (the wheel diameter, not the tire) is back there on an SQ. That will be another obvious clue about wheel diameters. The suggested official Audi fitments don't mean those are the only ones or the minimum ones that fit either AFAIK.

As I've said before, my D3 A8 with 385mm brakes of very similar design to the SQ's (slightly smaller at 380 mm) clears the brakes with factory 18's for that vehicle. My car has factory (optional) 20's but the factory spare is a baseline 18". The analog here would be baseline 18" Q5 wheels that are kind of dime a dozen available in the U.S. and could be good donor candidates for those who want narrow widths and higher aspect ratios for winter.

There is nothing magical about the SQ brakes beyond simple sizing and they use a relatively high volume basic floating twin piston caliper design, apparently shared w/ the D4 A8 3.0T by the way, and then with some black paint and a logo on an interchangeable clip. Perfectly competent design and found on other various higher power Audi sedans of fairly recent vintage and even up into some prior gen midsized BMW M's. They aren't at all like the bulky (and nice) many piston Brembo style used on RS4's and RS5's that do seem to require 19's even with only a 365mm rotor. The caliper shaping makes all the difference here and the newer style caliper designs in large measure are to allow rotor sizes to step up without extra big wheels, especially on the sedan/car side of Audi's products.

Someone please try an 18 and 19" factory wheel fitment onto an SQ5, or at least report on the spare wheel size. Anyone with standard Q5 wheels or S5 factory wheels would have prime donor test candidates.

Yoshimura

According to ETKA, there are 2 spare wheels available for Q5.

6.0Jx18H2 ET36 - 2009 and later
6.0Jx18H2 ET32 - 2013 and later, 'S' variant

spijun could propably confirm.