1. What is the recommend tire size for

20X8.5
20X9.5

2. Will my new 14" Rotora kit fit with this wheel?

Front offset +15
Rear offset +20

Thanks

 

You should go with 235/35 and 275/30 (Nitto). Or 255/30 and 285/30 (Pilot Sport).

 

I would go with the 245/35 and 275/35 setup from Nitto. I went with 255/35 and I have slight rubbing in the front on big dips. The rear fenders will need to be rolled with the 275's because of the offset. Irolled my fenders myself quite easily with no prior experience. I just took an air cutter and cut the fender lip every 3/4" or so and bent the tabs upward with the rubber handle of a hammer. Took 10 minutes max per side. I should mention that I have the Eibach springs on the car.