255/55/20 vs 255/50/20

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

ttforcefed

Full Access Member
Joined
Dec 19, 2010
Posts
524
Reaction score
148
on later model LR4s it seems the 20 inch oem size is 255/50/20. i found a set of wheels (thanks westporter) that i bought and they have 255/55s on them and these wheels came off an LR4. Did LR deliver cars with both 255/55 and 255/50s in 20?
 

catman

Full Access Member
Joined
May 4, 2015
Posts
699
Reaction score
194
Location
The Relay Shack, Parts Unknown USA
LR3/LR4 tires are 30" as the stock size, regardless of whether it is 18,19, or 20" wheels. This would be 255/50/20. However, you can safely fit up to about 31.5" before any potential rubbing or modication requirements become part of the equation. 255/55/20 are 31" tires and should fit fine. You will want to get a matching spare in 31" however in case you ever need to use it. It is not ideal to run a spare that is 1" smaller in diameter if you get a flat.
 

ttforcefed

Full Access Member
Joined
Dec 19, 2010
Posts
524
Reaction score
148
I dont want the speedometer and odometer to be off so ill prob stick with 255/50s


Sent from my iPhone using Tapatalk
 

ttforcefed

Full Access Member
Joined
Dec 19, 2010
Posts
524
Reaction score
148
good way to show less miles on a car - i wld never do it but im sure people do it all the time.
 

TheWidup

Full Access Member
Joined
May 25, 2018
Posts
541
Reaction score
268
Location
Grayslake, IL, USA
I don't think that's how it works anymore. There's a speed sensor in the transmission that does all the work on calculating miles. (At least I'm pretty sure most vehicles have that)
 

ktm525

Full Access Member
Joined
Mar 26, 2017
Posts
2,597
Reaction score
1,263
Location
alberta
It will throw the odo off. Transmission sensor or not it is assuming a final wheel circumference. Off course increasing tire size also raises the overall gearing (ie. your vehicle will have less power). It will affect acceleration and perhaps the vehicles ability to hold top gear on the highway in certain conditions. The change between 55 and 50 series will be slight. Some may not even notice.
 

jwest

Full Access Member
Joined
Mar 22, 2008
Posts
2,041
Reaction score
409
Location
Seattle WA
I don't think that's how it works anymore. There's a speed sensor in the transmission that does all the work on calculating miles. (At least I'm pretty sure most vehicles have that)

Actually I think these lr’s still use a wheel sensor as proven by running a gps and seeing obvious % differences depending on tire size.

It becomes especially apparent with 32+ and larger.
 

TheWidup

Full Access Member
Joined
May 25, 2018
Posts
541
Reaction score
268
Location
Grayslake, IL, USA
Actually I think these lr’s still use a wheel sensor as proven by running a gps and seeing obvious % differences depending on tire size.

It becomes especially apparent with 32+ and larger.
Yeah. I stand corrected. You'd think this would have been solved by now.
 

Latest posts

Members online

No members online now.

Forum statistics

Threads
36,223
Posts
217,601
Members
30,474
Latest member
sawcut
Top