[ZambeziHSE03]

Would a 305/40/22 fit or would it be too wide? I know most people go with 285/35 or 285/40 but just wanted to know if these would work on there.

Thanks!

 

[Gazellio]

They have a rolling Radius of 375mm against the stock 255/55 R19 Rolling Radius of 351 so 24mm too big!

 

[ZambeziHSE03]

Well it seems like they shouldn't be too tall since there is enough height clearance?

 

[brad s1]

Well it seems like they shouldn't be too tall since there is enough height clearance?

You want to keep the same total diameter, what if you end up on bump stops/access mode and it rubs? Not worth it!

 

[Gazellio]

Well it seems like they shouldn't be too tall since there is enough height clearance?

Yup that kind of difference could also lead to problems with the Gearbox, Differential & Transfer Box as well as the Speedometer and all other calculation including Service Interval being wrong!

You need to stick within a few mm of stock really.

Try using this tool and compare what you want with either 255/55 R19 or 255/50 R20 http://www.garyelliott.co.uk/ranger/tyrecalc.htm

 

[ZambeziHSE03]

Thanks!

I got some brand new 22" Stormers with new 265/35/22 locally and the sidewall is too small so I am going to get either 285/40/22 or 285/35/22 this week.

 

[Gazellio]

Thanks!

I got some brand new 22" Stormers with new 265/35/22 locally and the sidewall is too small so I am going to get either 285/40/22 or 285/35/22 this week.

You need the 285/35/22 to keep within the required margins....

HOWEVER...............your Ride comfort level will be a measly 4.4 (10 is minimum for correct RR ride)

My 19" 255/55 R19 produce a smoooooth comfort level of 10.8!!!!

Do you really think that the 22" look is worth such a huge loss of comfort and the majestically comfortable ride that part made RR famous :?:

 

[krunkman]

285/40/22 is absolutely the only way to go.

Had 285/35/22 before and there is just too much gap, looks horrible and rides like ****.

 

[Gazellio]

285/40/22 is absolutely the only way to go.

Had 285/35/22 before and there is just too much gap, looks horrible and rides like Golly Gee Whiz.

If you say so but thats a 73mm bigger circumference (3 inches) over stock design :think:

 

[krunkman]

285/40/22 is absolutely the only way to go.

Had 285/35/22 before and there is just too much gap, looks horrible and rides like Golly Gee Whiz.

If you say so but thats a 73mm bigger circumference (3 inches) over stock design :think:

That sounds worse than it is.

285/35/22 Diameter is 29.9 inches
285/40/22 Diameter is 31inches
http://www.miata.net/garage/tirecalc.html

 

[Gazellio]

285/40/22 is absolutely the only way to go.

Had 285/35/22 before and there is just too much gap, looks horrible and rides like Golly Gee Whiz.

If you say so but thats a 73mm bigger circumference (3 inches) over stock design :think:

That sounds worse than it is.

285/35/22 Diameter is 29.9 inches
285/40/22 Diameter is 31inches
http://www.miata.net/garage/tirecalc.html

Neither of the above is stock though!!!

Stock 255/55 R19 or 255/50 R20 Diameter is 28 inches and this is what the car is set up for;

Therefore:

285/35/22 Diameter is 29.9 inches = 2 inches over-size
285/40/22 Diameter is 31inches = 3 inches over-size

In Wheel/Tyre terms that's quite a lot of deviation but its your choice I was just pointing out the potential downsides however good/right they look in your opinion....