275/60/20 on OE 20's

[Sonny]

I was going to do the ridge grapplers yesterday but decided to go with the K02s. It was in stock at my local discount tire and they had no wait time. I love them so far 275/60/20. 45psi

Looks great! Hard to go wrong with KO2s. I went with the Ridge Grapplers for the same reason (discount tire had them in stock).

 

[nickclark30171]

Nitto recommended 39. Been running em at 40 41.

40 front 41 back?

 

[theblet]

Good to know we can upsize to the 60s with no ORP and stock suspension.

 

[Sonny]

40 front 41 back?

Installer set them all at 40, sometimes a few or all show 41. Took a few days to get the recommendation from NITTO back. The difference was so small didn't mess with it. I'll only tweak it if I notice some strange wear patterns as they seem to ride good at this PSI.

 

[User_63152]

Here's mine. 275/60/R20 Pirelli Scorpion All Terrain Plus, all set at 37 PSI

 

[User_63152]

Here's a better shot with them all shined up, even though I do not like tire shine. But, they needed it, bad. LOL

 

[Jabberjaw]

275/60/20 Falken Wildpeak AT3W on stock suspension.

 

[Sportznut]

how much air pressure?

40/40

Sent from my SM-N960U using Tapatalk

 

[User_63152]

40/40

Sent from my SM-N960U using Tapatalk

I ended up bumping mine up to 40/40 PSI, also

 

[chyzzz]

ORP + 2 Inch level 275/60r20 Goodyear Duratrac

 

[chjo4546]

Did you guys calibrate your speedometer/shifting points? I bought the RC calibrator but didn't do it yet. I feel like I notice a difference in shifting behavior, more so in the throttle response from a slow roll or stop. I feel like I noticed that always anyway...but maybe more now. I could be imagining things too. Speedometer reads correct when compared to phone gps, so I thought I was good. I'll go on a longer highway trip tomorrow night so will double check 275/60/20 K02. [UPDATE: I was connected to apple carplay which I read on here will cause the numbers to match]

 

[User_63152]

Did you guys calibrate your speedometer/shifting points? I bought the RC calibrator but didn't do it yet. I feel like I notice a difference in shifting behavior, more so in the throttle response from a slow roll or stop. I feel like I noticed that always anyway...but maybe more now. I could be imagining things too. Speedometer reads correct when compared to phone gps, so I thought I was good. I'll go on a longer highway trip tomorrow night so will double check. 275/60/20 K02

I did, using the Tazer DT.

 

[chjo4546]

I finally recalibrated with the RC unit and shifting feels better. After redoing the gps test without being connected to the car/bluetooth, I found I was going faster by 3-4 mph at 70mph compared to the speedometer. I also measured my tires and they were actually 31.75" at 45psi instead of the spec 33". I used the 31.75 with the RC unit and the speedometer is matching my phone gps exactly now.

 

[User_63152]

I finally recalibrated with the RC unit and shifting feels better. After redoing the gps test without being connected to the car/bluetooth, I found I was going faster by 3-4 mph at 70mph compared to the speedometer. I also measured my tires and they were actually 31.75" at 45psi instead of the spec 33". I used the 31.75 with the RC unit and the speedometer is matching my phone gps exactly now.

31.75'', what?! Stock tires are 31.9''

 

[nandalora]

Remember, the 33" spec is unloaded so it will be shorter with load on the tire. Also, the spec dims are measured on an 8" wide rim and our 20"s are 9" wide so that will reduce the height as well. For all these reasons, I'm considering 275/65R20s but it's almost impossible without the E load rating. Only option I know of is Nitto Terra Grappler G2.

 

[akostaac]

I’m installing nitto ridge 275/60 R20 xl on my new 2021 Big horn this week with 1.5 wheel spacers to get a better stance. I will report back if I find any issues. No leveling kit! Oem suspension

 

[theblet]

Planning on this size without the spacers. Hope it works good

 

[akostaac]

nitto ridge 275 60 R20 xl on stock wheel and 1.5 wheel spacers all around. No issues with rubbing or anything. The tires are as expected a little more noisy but the stance and the feel is awesome. I will post more pics once I wash the truck.

 

[Whoa_Ram]

nitto ridge 275 60 R20 xl on stock wheel and 1.5 wheel spacers all around. No issues with rubbing or anything. The tires are as expected a little more noisy but the stance and the feel is awesome. I will post more pics once I wash the truck.

Looks good! Now just let us know how it affects MPG's since they are a little heavier then stock.

 

[theblet]

Looks good! Now just let us know how it affects MPG's since they are a little heavier then stock.

I agree it looks amazing! Curious about fuel mileage as well.