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Greetings ,
New member here. Went to tire shop put 275/60 20r KO2 tires on my G63 2018, 20" stock rim no spacer no lift. Unfortunately, full lock right slightly rubbed ( see pics below). Tire shop suggested to put on 265/60 20r. It rubbed again. Next week they are going to put on 275/55 20r which all the threads I read on here suggest. Hopefully it won't rub. I will keep you guys updated.
Anyone running 275/55 20r KO2 with stock specs? Any rubbing?
If 265s rubbed, 275s will rub also. Are your wheels OE or aftermarket, and what's the OE tire size on your MY?
My wheels are stock wheels and stock tires are 275/50/20r, all the guys on here say 275/55/20r A/T tires would fit without any modification. Actually 265/60/20r diameter is taller than stock tires.
My wheels are stock wheels and stock tires are 275/50/20r, all the guys on here say 275/55/20r A/T tires would fit without any modification. Actually 265/60/20r diameter is taller than stock tires.
cheers
The problem you seem to be having is the overall width of the tire rubbing on the steering arm. A small wheel spacer would alleviate that issue if you want to keep the 275 width tire.
My wheels are stock wheels and stock tires are 275/50/20r, all the guys on here say 275/55/20r A/T tires would fit without any modification. Actually 265/60/20r diameter is taller than stock tires.
cheers
The rubbing you have appears to be tire width related, not height related - that's why I asked if your wheels are OE or aftermarket, and have a different offset spec and/or rim width. The only difference between 275/50R20 and 275/55R20 is an extra 1/2" of tire height (1" greater in diameter) - no difference in width. I put 55s on my 2019 G in place of OE 50s and there's still plenty of clearance.
The 265/60R20 you mounted is 3/4" taller (+1.5" greater in diameter) and 0.4" narrower, so it should give you an extra 0.2" of clearance. Why this narrower tire rubs and the 275 doesn't is a mystery to me. There must be something else going on. You can compare tire and wheel dimensions at www.rimsntires.com/specspro.jsp
Have you checked the wheel stop bolts? There is one on each side and it controls total wheel movement side to side. You can loosen the nut, extend the bolt slightly and then tighten the nut. This will slightly reduce the total steering angle and might be enough to eliminate the rubbing.
The problem you seem to be having is the overall width of the tire rubbing on the steering arm. A small wheel spacer would alleviate that issue if you want to keep the 275 width tire.
My stock wheels are 275, i think it might be the diameter causing it rubbed
The rubbing you have appears to be tire width related, not height related - that's why I asked if your wheels are OE or aftermarket, and have a different offset spec and/or rim width. The only difference between 275/50R20 and 275/55R20 is an extra 1/2" of tire height (1" greater in diameter) - no difference in width. I put 55s on my 2019 G in place of OE 50s and there's still plenty of clearance.
The 265/60R20 you mounted is 3/4" taller (+1.5" greater in diameter) and 0.4" narrower, so it should give you an extra 0.2" of clearance. Why this narrower tire rubs and the 275 doesn't is a mystery to me. There must be something else going on. You can compare tire and wheel dimensions at www.rimsntires.com/specspro.jsp
I am going to try the 55s on Monday, I think it might be the height causing the rubbing issue. All the guys on here say 55s won't rub. If it rubs again it might be something to do with my alignment.
Have you checked the wheel stop bolts? There is one on each side and it controls total wheel movement side to side. You can loosen the nut, extend the bolt slightly and then tighten the nut. This will slightly reduce the total steering angle and might be enough to eliminate the rubbing.
Are you certain about the tire size spec you have? Goodrich doesn't list a 275/55R20 in its KO series. Closest is 275/65R20, which is 3.2" larger in diameter. Also LT tires tend to be a bit wider than the dimensional spec. 275 is 10.8" - Goodrich lists tire width as 11" when mounted on an 8" rim. Your rims are probably 9.5" which could make the tire even a bit more wide. No matter - a wheel spacer, maybe 12mm, seems prudent.
Are you certain about the tire size spec you have? Goodrich doesn't list a 275/55R20 in its KO series. Closest is 275/65R20, which is 3.2" larger in diameter. Also LT tires tend to be a bit wider than the dimensional spec. 275 is 10.8" - Goodrich lists tire width as 11" when mounted on an 8" rim. Your rims are probably 9.5" which could make the tire even a bit more wide. No matter - a wheel spacer, maybe 12mm, seems prudent.
They definitely make one, as I have had a set of the BFG KO2s in 275/55R20. It fit on our 2014 G63 just fine with no modifications, on OEM wheels.
They definitely make one, as I have had a set of the BFG KO2s in 275/55R20. It fit on our 2014 G63 just fine with no modifications, on OEM wheels.
I'm continually astounded at how poorly maintained so many vendor websites are -- BFG could be selling more tires if its website was current. I put 275/55R20 Yoko Geolandars on my 2019 and there's still plenty of room, vertical and width. Still puzzled by the close clearances on this 2018.
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