The Yeti uses 7Jx16 ET45 rims for its 215/60R16 tyre size.
The Karoq front wheel drive uses 6Jx16 ET43 rims for its 215/60R16 tyre size.
The Karoq 4x4 uses 6Jx16 ET43 rims for its 225/60R16 tyre size.
As you can see in the chart below, 6J is the minimum rim width for both 215/60R16 and 225/60R16. It's surprising that the Yeti went for such wide rims, ie. 7J for its 215/60R16 tyre size. By comparison, the Superb MK3 uses a 6.5J rim for its 215/60R16 tyre size.
ETRTO approved rim widths
215/60R16 6.0-6.5-7.5
225/60R16 6.0-6.5-8.0
235/60R16 6.5-7.0-8.5
All things being equal, a 215/60R16 fitted to a 6J rim will give a more comfortable ride than fitting this tyre size to a wider rim such as 6.5J or 7J. So although a 215/60R16 fitted to a 7J rim may give a Yeti an acceptable ride for many, it is not the ultimate combination when it comes to ride comfort. For example, fitting a 215/60R16 to a 6Jx16 ET43 rim from the Karoq, should provide a noticeable improvement in ride comfort compared to using the 7J Yeti rim with this tyre size...all other things being equal.
Surprisingly, a 235/60R16 tends to be a cheaper tyre size than both 215/60R16 and 225/60R16...and could be a good option on the Karoq 4x4 with a 7Jx16 rim...or possibly an over-size Yeti tyre.
As you can see in the chart below, 235/60R16 has an outside diameter 1.3% bigger than 225/55R17 (which is one of the standard Karoq 4x4 tyre sizes). Up to 1.5% difference from standard is normally considered insignificant.
Outside diameter of tyres
225/55R17 679.3mm
235/60R16 688.4mm (+1.3%)
7Jx16 ET45 5/112 57.1 has been used on quite a few VAG cars over the years including (so there a plenty of secondhand rims available, and new steel rims are still available in this size):
Audi A4 1995-2007
Audi A6 1997-2011
Seat Exeo 2009-2013
Skoda Superb MK2 2008-2015
Skoda Yeti 2009-2017
VW Eos 2006-2015
VW Passat 2005-2014
Here are three examples of the 235/60R16 tyre size. In these examples the tyres are not over-specified for the Karoq 4x4, ie. not XL (eXtra Load) and not V/W/Y speed rating. By not over-specifying a tyre the sidewalls remain as soft and flexible as possible which helps to provide the best ride comfort...all other things being equal.
Uniroyal RainExpert 5 235/60R16 100H (summer tyre)
https://www.camskill.co.uk/m62b0s425p212999/Uniroyal_Tyres_Car_Uniroyal_RainExpert_5_235_60_R16_100H_TL_Fuel_Eff_%3A_C_Wet_Grip%3A_A_NoiseClass%3A_B_Noise%3A_71dB
Vredestein Quatrac 6 235/60R16 100H (3PMSF) (all-season tyre)
https://www.camskill.co.uk/m139b0s12008p201646/Vredestein_Tyres_All_Season_Car_Vredestein_Quatrac_6_235_60_R16_100H_TL_Fuel_Eff_%3A_C_Wet_Grip%3A_B_NoiseClass%3A_B_Noise%3A_71dB
Yokohama Geolandar AT G015 235/60R16 100H (3PMSF) (all-season tyre) (All-Terrain tyre)
https://www.camskill.co.uk/m62b0s425p148190/Yokohama_Tyres_Car_Yokohama_Geolandar_AT_G015_235_60_R16_100H_RPB_TL_Fuel_Eff_%3A_E_Wet_Grip%3A_C_NoiseClass%3A_B_Noise%3A_72dB
As you can see in the below two photos, a 235/55R17 gives the Yeti a beefier look compared to the standard 225/50R17 tyre size. However, I would prefer the 235/60R16 option in preference to a 235/55R17. Not only would the resulting 16" wheel weigh a lot less than the 17" wheel, but unlike the 235/55R17, the 235/60R16 is not over-specified for the Yeti/Karoq. 235/55R17 is often XL (eXtra Load) and also tends to have a speed rating more than H (130mph). This all adds up to an unnecessarily heavy and stiff tyre.
Yeti with 225/50R17 tyres (top photo) and 235/55R17 tyres (bottom photo)
Compared to the below 7Jx17 alloy rim (10.1kg) from the Karoq (which is quite a light 17" rim), you can get 7Jx16 ET45 alloy rims that weigh a much lighter 7.3kg (from Audi A4/A6 1997-2004) saving 2.8kg each rim, ie. this 17" alloy rim is almost 40% heavier than some lightweight 16" alloy rims.
There's some dispute over the weight of the 10.1kg alloy rim, because the black version is listed at 10.9kg. So the lightweight 7.3kg 16" alloy rim may provide a even bigger weight saving compared to these 17" alloy rims, ie. a 10.9kg rim is a whopping 50% heavier than 7.3kg. No wonder the above Yeti owner with 235/55R17 tyres found his 17" wheels to be on the heavy side.
7Jx17 ET45 alloy rim (10.1kg) (from Karoq)
https://eshop.skoda-auto.cz/cs_CZ/alu-kolo-ratikon-17-karoq/p/57A071497C+8Z8
7Jx17 ET45 alloy rim (10.9kg) (from Karoq)
https://eshop.skoda-auto.cz/cs_CZ/alu-kolo-ratikon-17-karoq/p/57A071497D+FL8