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Switching 20" Wheels and Stock Tires for a 17" All Terrain Setup.

3912 Views 15 Replies 9 Participants Last post by  ironmansmith
Thought there may be some interest in this so I am reposting this from another section.
Ok, here goes. Overall there is next to no information out there on modifying a CX 50 to make it more off pavement suitable. How do you build a new model targeted at the outdoors / offload market and deliver it with 20" wheels and low profile street tires? First, the stock wheels are 20x8 5x114.3 bolt pattern with a 45mm positive offset. Those numbers are stamped on the backside of the wheel. I weighed the stock wheel / tire combo at 65lbs....not lite. I'm going to try 17x8 35 positive offset KMC 545 Treks ( not my first or second choice but both of those are on backorder) @ 26 lbs mounted with Toyo AT III 235x65x17 tires @ 33lbs. This combo will give me over 1.5 inches more sidewall, 0.4" less width, 0.34" bigger diameter and around a 60 lb weight once mounted and balanced. Everything is ordered and I'll update results and include pics once completed.
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Thought there may be some interest in this so I am reposting this from another section.
Ok, here goes. Overall there is next to no information out there on modifying a CX 50 to make it more off pavement suitable. How do you build a new model targeted at the outdoors / offload market and deliver it with 20" wheels and low profile street tires? First, the stock wheels are 20x8 5x114.3 bolt pattern with a 45mm positive offset. Those numbers are stamped on the backside of the wheel. I weighed the stock wheel / tire combo at 65lbs....not lite. I'm going to try 17x8 35 positive offset KMC 545 Treks ( not my first or second choice but both of those are on backorder) @ 26 lbs mounted with Toyo AT III 235x65x17 tires @ 33lbs. This combo will give me over 1.5 inches more sidewall, 0.4" less width, 0.34" bigger diameter and around a 60 lb weight once mounted and balanced. Everything is ordered and I'll update results and include pics once completed.
Finished the wheel / tire swap and so far very happy. No fitment issues, slightly improved ride quality, no increase in road noise and I'm sure better off road, snow and ice performance.

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Looks awesome! Thanks for the info. I'll be wearing down the stock tires and then swapping to something like your setup. I wondered if I could find Meridian setup eventually when people swap to more aggressive setups. I like that wheel
That does look really good. Have you driven it enough to see a difference in fuel economy or not?
That does look really good. Have you driven it enough to see a difference in fuel economy or not?
Not yet, but I kept the wheel / tire weight very similar( within 1 lb ) and the tire is 0.4" narrower so I don't there will be much change. Let you know after more time with the new setup.
I can’t believe our stock wheels weigh over 30lbs. Probably closer to 35 really if the wheel and tire combo is truly 65 pounds total. Man, that’s heavy!
The wheels actually weigh 31.2 lbs each.
Re - weighed the stock tire / wheel combo with a new scale. They are 61 lbs not 65 lbs. The all terrain setup I just put on weigh 59 lbs. I wanted to go lighter but 2 sets of wheels I tried to order were backordered.
You mention slightly improved ride quality. Could you elaborate on that with regard to comfort? Do you find the ride more compliant?
A bit more compliant on pavement. Where I really notice it is on dirt roads with washboard, large gravel and potholes. Overall, I like the firm ride and it works well off pavement, better than I thought it would. I believe this is due to the excellent dampening. Hope this helps.
I wish I had the bucks for the Meridian edition in the Zircon Sand.
Looking at a select model, I may end up putting the same tires that are on the Merdian edition (falkin) but in 17 inch. Have 2nd set of tires mounted for my cx5, but would prefer not to have to change over. And the Falkins are snow rated
I replaced my wheels/tires and am going to be locally selling the OEM 17" wheels and 225/65 R17 Goodyear's with 500 Miles on them. Does anyone want to comment on what they would be willing to pay for that setup?
I replaced my wheels/tires and am going to be locally selling the OEM 17" wheels and 225/65 R17 Goodyear's with 500 Miles on them. Does anyone want to comment on what they would be willing to pay for that setup?
A bit more compliant on pavement. Where I really notice it is on dirt roads with washboard, large gravel and potholes. Overall, I like the firm ride and it works well off pavement, better than I thought it would. I believe this is due to the excellent dampening. Hope this helps.
Just wondering where you got your new rims. I have the 20's and hit a not to big pothole today. Tire is toast. I bought a tire warranty.
Going to dealer tomorrow for a replacement.
I got both the wheels and tires thru the local Discount Tire. Both my brother and I have been doing business with Discount for years in several different states and the service has been excellent.
I got both the wheels and tires thru the local Discount Tire. Both my brother and I have been doing business with Discount for years in several different states and the service has been excellent.
Thanks for getting back to me. Mark
I had my CX50 for about 2 weeks before I needed some snow tires. I had a set of rims that came off my Mazda 3 and est fitted them before I got some snow tires mounted. I used the rims because they were 17in and the stock ones on a CX50 are 17's. They work awesome! We had about 10in of snow and I couldn't get stuck! Even on hills. On the hwy, the ties seem a little soft on corners, I can't compare to the stock 20's because I only have 200kms on them before the swap.
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