I have the 17" variant on my 20' CX 5 touring AWD. My goal is a a bit less sidewall then the 17" but not that of the 19", improved handling and the aesthetic of a fuller wheel well/ wider tire stance. I bought some 21' take off CX 3 18" 7.5" wide and with the same offset of the 17/19 CX 5 OE rims @45mm. I really like the General Alimax 365 AW tires but am torn between a 225/235-60-18. Either size ticks the sidewall and performance items but the 225 is basically the same size as the OE 19" 225/55 and the 235 is .5" taller and wider. Both tires weigh within 2lbs of the 17" Toy OE and the 18" rims do weigh more but i dont know how much.

I'd love to hear from any whose gone this route if possible. Thanks

 

I got Mazda M012 18x8.0 ET+45 wheels, with 245/55-18 Continental DWS06 tires. Very happy with the ride and especially the grip in both dry and wet.

 

Nice. I like the look. Seems to be a close 18" equivalent to the OE 225/55/19 in terms of diameter but being an inch or so wider. Is this a seasonal set up?

 

Yes, summer set. For winter I have Fast Switch F212 18x8.0 ET+45 with 225/60-18 Continental Viking 7s...

 

18" CX 30 wheels and 235/60/18 general 365 AW tires. The Machine Grey does make the wheels seem larger. BUt im planning on plasti dipping um black to see what that deos.

 

Too late, the OP already has his wheels and tyres.