LX570 rim recommendations (3 Viewers)

[coleAK]

there's advantages for sure with larger wheels including more stability, handling, braking, cornering, towing, etc.

every objective analysis I’ve ever read even for track cars larger rims are a disadvantage. On all vehicles the best choice for performance across the board is to run the smallest rims that can fit over the brakes. The only reason to go to a larger rim than that is to fit larger brakes.

Larger rims = more rotational mass = increased braking distance and decreased acceleration.

Larger rims =less sidewall, less sidewall = less grip.

For towing heavy loads tire load maters way more then rim size. I kept my OEM 20’s for 6-7 years and used to swap to them when we would do long (as in >1000 miles or so) trips with my camper ( just over 7lbs total , ~1k TW) One day I decided to test it myself the E load KO2s on the 20’s towed if anything slightly worse then the C load KO2s on my 17’s.

Heck When Formula 1 went from 15” to 18” rims to make the “cars look more modern” track times got slower across the board.

The only advantage of “larger rims” is subjective looks.

 

[TeCKis300]

every objective analysis I’ve ever read even for track cars larger rims are a disadvantage. On all vehicles the best choice for performance across the board is to run the smallest rims that can fit over the brakes. The only reason to go to a larger rim than that is to fit larger brakes.

Larger rims = more rotational mass = increased braking distance and decreased acceleration.

Larger rims =less sidewall, less sidewall = less grip.

For towing heavy loads tire load maters way more then rim size. I kept my OEM 20’s for 6-7 years and used to swap to them when we would do long (as in >1000 miles or so) trips with my camper ( just over 7lbs total , ~1k TW) One day I decided to test it myself the E load KO2s on the 20’s towed if anything slightly worse then the C load KO2s on my 17’s.

Heck When Formula 1 went from 15” to 18” rims to make the “cars look more modern” track times got slower across the board.

The only advantage of “larger rims” is subjective looks.

It wouldn't be news that compliance decreases response. Sidewalls flex and sidewall can roll over. Taller profile tires inherently have more pneumatic trail and slip angle when cornering.

I've run so many wheel and tire packages on the 200-series now. Smaller wheels absolutely impacts response and handling sharpness. Yes sports use larger wheels for brakes, but also because it affects both the subjective and objective measures of performance.

Honestly the rotational mass everyone tosses around is less of a factor on a generally slower accelerating SUV like our 200-series.

It's individual preference in the end but these factors are not imaginary.

We've had this discussion before. The highest performance trim Porsche 911s uses larger wheels for response and performance. Base 911s start with 19", going all the way to 21" on a GT3 RS.

There's multiple trades and many do favor smaller wheels. To your point, there's additional advantages to moment of inertia, rolling resistance, etc, on top of those advantages already identified. I absolutely agree and there's no argument to those facts. An 18" can make sense for many.

IIRC, you've had Porches. Consider:

2021 GT3: F 9" x 20" - 52, R 12" x 20" x 44​

2021 GT3 RS: F 9.5" x 20" - 50, R 12.5" x 21" x 48​

The faster more extreme version steps up to a larger wheel. An extreme but it is the same fundamentals. What can't be dismissed is handling and stability advantages which shouldn't be conflated and aren't negated with the pros of smaller wheels you point out. As others have attested, many times over on these boards, the additional compliance with more sidewall. Most times preferred. But just as many times results in surprise. Does it make a difference day to day, perhaps subjective and depends on driving style, but there absolutely is a difference. Especially with really large tires. In my use, I prefer 20s with 35", for the way I use the vehicle. I drive fast on mountain roads, tow heavy, and definitely still want it to play hard in the dirt.

Back to the point of this thread - will 20s and a large 34" tires air down and play well in the dirt - heck yes. And it'll do it with confidence and performance. More importantly, it will retain some measure of better stability and handling where the vehicle is 98% of the time.

 

[coleAK]

We've had this discussion before. The highest performance trim Porsche 911s uses larger wheels for response and performance. Base 911s start with 19", going all the way to 21" on a GT3 RS.

As for Porsche, 19’s are the smallest that will fit over the OEM brakes on a 991. 20’s are the smallest that will fit over the PCCBs on the GT3 (21’s are optional). The “cup car” which is a step above the GT3 runs 19”’rims, due to spec racing regulations the cup has smaller brakes then the GT3.

this shows us the only reason to run larger rims is to fit larger brakes.

 

[BossHogg760]

tell me how they ride. good on the highway, snow/ice/rain?

tell me how they ride. good on the highway, snow/ice/rain?

I live in San Diego so can’t speak of the snow/ice, but the highway comfort and sound is phenomenal. Better than the Michelin Latt’s that came off lol, but they were worn.

 

[Imola Red]

Any easy way of finding out the offset of certain wheels? This person has a set of 18" Fuels that were off of their Tundra but doesn't know the offset.

Just wondering if these would work on an LX 570

 

[CharlieChops]

20s work great on this big bodied car, all the way into more extreme tire sizes. I get the focus is all too often on "off-roading" but there's advantages for sure with larger wheels including more stability, handling, braking, cornering, towing, etc.

The other all too common perspective is just looking profile shots. Don't forget that tire width matters (a lot) too, for many of the same reasons. Even more so when increasing center of gravity with taller tires. The 200-series is full fat in weight, and that's a job for full fat tires if performance and handling, or even safety, matters.

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Don't skip leg day
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Are these 18s or 20s? I see you have 18s listed in your signature.

 

[TeCKis300]

Are these 18s or 20s? I see you have 18s listed in your signature.

I have two wheelsets.

The ones in the picture are factory LX570 20" wheels with 35x12.5R20 A/T tires. I'm using these primarily for road trips involving towing.

I have another set of Tundra 18" wheels wrapped in 37x12.5R18 R/T tires. Using for everything else including hard parking at the mall.

EDIT: adding pictures

 

[gray rider]

I have two wheelsets.

The ones in the picture are factory LX570 20" wheels with 35x12.5R20 A/T tires. I'm using these primarily for road trips involving towing.

I have another set of Tundra 18" wheels wrapped in 37x12.5R18 R/T tires. Using for everything else including hard parking at the mall.

EDIT: adding pictures
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What tires do you have on the 20" stock wheels in the photo with the camper?

 

[TeCKis300]

What tires do you have on the 20" stock wheels in the photo with the camper?

Sure. Toyo Open Country A/T III. Great all around tire. The LT and floatation sizes have more aggressive side lugs and deeper thread depth.