Tallest 275 pizza cutter

[treeviper]

Probably getting a new Tundra with 18" wheels. 275 70 18 seems like a decent 33" size without stepping up to 285. Any all terrain or hybrid tires in 275 that's are taller? I'd like to keep the 18s.

 

[rruff]

275/70R18 Tires

275/70R18 tire conversion. Convert 275/70R18 tire size to inches and compare prices on available tires from the top brands online.

tiresize.com

You might like 285/75r18 which would be more of a pizza cutter, and making clearance for those on stock tires is pretty easy.

 

[treeviper]

I found these, but they were discontinued. Cool size, but the tread looked kinda mild.

 

[rruff]

That's a shame that it's discontinued; skinny 35.3" tire. Since Tinker did his test on skinny vs wide, I've been wondering about going narrow.

Anyway, the 285/75r18s are a good size and common.

 

[Downytide]

Just be cautious that 285/75r18s are pretty much all load index 129, that means they are very very stiff, I've had 2 sets of them, terrific when towing but the ride can be jarring.

Falken AT4W however just launched 35x11r18 and in c-load, that's a very worthy consideration if you don't have to load your truck to the max.

 

[rruff]

Just be cautious that 285/75r18s are pretty much all load index 129, that means they are very very stiff,

Not necessarily... not if you adjust to the proper pressure. This is the video that found the skinny to be much more compliant. Same load rating for both. But ya, if it's a choice between tires of the same dimensions, then the one with thinner and more compliant sidewalls should ride better.

I'd really like people to replicate this test with different tires... because I don't understand why they'd be so different.

 

[PirateMcGee]

Might check out 255/85r17s...

 

[rruff]

He was looking for a 18, but...

That's definitely a pizza cutter!... but the only tire in 255/85r17 I see is a MT Baja Boss at $350, which is pretty pricey for a 34.

 

[Peter_n_Margaret]

The Iveco 4WD comes standard with Michelin 255/100R16 (=36").
My OKA was originally fitted with these, but I changed due to increased weight.
Absolutely fantastic 4WD tyre, hard to get in some countries and expensive.
There are clones made in India and China. No idea if they are any good.
Cheers,
Peter
OKA196 motorhome

 

[nickw]

Probably getting a new Tundra with 18" wheels. 275 70 18 seems like a decent 33" size without stepping up to 285. Any all terrain or hybrid tires in 275 that's are taller? I'd like to keep the 18s.

You stuck on using 18's - you don't indicate if alternate wheel size is an option.

255/85 R17 is a great option for 17's, I have them on my Ram 2500 and are very nice overall.

 

[beef tits]

Apparently the AT4W pizza cutters come in C load, first I have seen.

Otherwise I've never seen pizza cutters in anything other than E load rating.... which is AWFUL, and not worth the harsh ride/lack of flex.

 

[Downytide]

Not necessarily... not if you adjust to the proper pressure. This is the video that found the skinny to be much more compliant. Same load rating for both. But ya, if it's a choice between tires of the same dimensions, then the one with thinner and more compliant sidewalls should ride better.

I'd really like people to replicate this test with different tires... because I don't understand why they'd be so different.

I think compliance can be view very differently, how sidewall flex may not translate into ride quality, I had Yoko X-AT and Falken At3w, both 285/75r18s, I just didn't want to do BMC at the time hence the choice, I tow a lot (still do), and did all the trail stuff with them, I'd run them at 20psi when on trail:


I'd run up to 60psi when towing heavy, and normal day to day I'd run 36psi, it wasn't bad but compare to the KO2s in c-load, it was like riding on BRICKS vs cloud.

I think pizza cutters have their place, lighter vehicles and duallys, not a Tundra.

 

[rruff]

Otherwise I've never seen pizza cutters in anything other than E load rating.... which is AWFUL, and not worth the harsh ride/lack of flex.

Well... that's confusing since you are the 2nd person to say that. In the video I posted above, he found that the skinny tires flexed much better than the wide ones... it wasn't close. And most of us are using E rated tires anyway, since in the big sizes that is most common. Just sayin', a skinny E should ride better than a fat E.

I don't know why they'd be harsh unless they were over-inflated. With a ~2250lb load per tire, proper inflation pressure is 35spi, even though the E can go to 80psi if the load warrants it. This is looking at the 285/75r18 (E) and 35x11.5r18 (C).

 

[rruff]

I had Yoko X-AT and Falken At3w, both 285/75r18s

I'd run up to 60psi when towing heavy, and normal day to day I'd run 36psi, it wasn't bad but compare to the KO2s in c-load, it was like riding on BRICKS vs cloud. I think pizza cutters have their place, lighter vehicles and duallys, not a Tundra.

So... what size are the KO2s and what psi do you use for those?

 

[Downytide]

KO2s I went up to 37x12.5r17 C-load, run same 36psi on day to day, 42psi when towing.

Left is my old AT3W 285/75r18, right is KO2, the skinny 35s rides around 34.2" ish when it's on the ground, and the 37s ride about 35" ish when on the ground, the KO2s definitely compress lot more under weight but the ride difference is night and day, this set up I intentionally aim for weight and it paid off on compliance.