It is almost time to think about tire chains or other snow traction devices.  The CX-9 wheels don't offer much clearance, and alternatives to chains or cables are usually recommended.  Laclede Alpha Trax might be the pick of the litter.  https://lacledechain.com/alpha-trax/
tirechain.com has them for the 255/50-20 tires for $128 (still a lot) vs. O'Reilly Auto Parts at $170, size 735AT. https://tirechain.com/255-50r20-alp...edded-with-alloy-steel-studs-priced-per-pair/
255/60-18 are the same price but size 741AT.
They go on the CX-9 front wheels whether FWD or AWD.
No, I haven't used them, but I'm thinking about buying a set. My Blizzak winter tires have worked well for me, but in the past I've been on roads where chains or equivalent were required on every vehicle.
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As always, try on any chains or alternatives in your own driveway on a warm bright day, and also practice putting them back into the package. If you need to use them, guaranteed, it'll be cold, dark, snowy, & wet when you have to use them. Pack a waterproof ground cloth, gloves, & good flashlight with the chains--you'll need them.
	
		
			
		
		
	
				
			tirechain.com has them for the 255/50-20 tires for $128 (still a lot) vs. O'Reilly Auto Parts at $170, size 735AT. https://tirechain.com/255-50r20-alp...edded-with-alloy-steel-studs-priced-per-pair/
255/60-18 are the same price but size 741AT.
They go on the CX-9 front wheels whether FWD or AWD.
No, I haven't used them, but I'm thinking about buying a set. My Blizzak winter tires have worked well for me, but in the past I've been on roads where chains or equivalent were required on every vehicle.
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- Thermoplastic Polyurethane Rubber that has two traction pads per cross member
 - Can sustain extended use on dry or wet pavement
 - The traction stud alloy studs are heat treated with 15Mn3
 - 6 alloy studs on each cross member for extra traction
 - 1 Pair of rubber adjusters are included and required for use. Comes with draw string carry bag.
 - Meets SAE Class S clearance requirements
 - Designed to withstand a greater degree of mixed road conditions.
 - Meets All Chain Law Requirements
 
As always, try on any chains or alternatives in your own driveway on a warm bright day, and also practice putting them back into the package. If you need to use them, guaranteed, it'll be cold, dark, snowy, & wet when you have to use them. Pack a waterproof ground cloth, gloves, & good flashlight with the chains--you'll need them.