Changing Trailer Tire Size?


Old 09-05-17, 06:52 AM
Group Moderator
Thread Starter
Join Date: Mar 2003
Location: NC, USA
Posts: 18,121
Changing Trailer Tire Size?

This somewhat relates to my previous thread about trailer tires at highway speeds. I am finally ready to get new trailer tires for this 6x10' enclosed single axle trailer. I will be getting high speed rated radial tires. Routinely the trailer weighs 1'500 but once a year I take a big trip where it will be loaded to 2'200 pounds.

I have the option of getting 205/75R15 load range D which can carry 2'150 pounds which is the same size that's on the trailer now. But, if I go to 225/75R15 I can get load range E with a capacity of 2'830 pounds. Both are capable of carrying the load but is there increased safety if I go with the heavier rated tires?
Sponsored Links
Old 09-05-17, 07:01 AM
Join Date: Jan 2010
Location: North East Kingdom of Vermont
Posts: 2,497
No issues with rubbing when the 225 is almost 10% wider than the 205 (and about an inch taller) ?
Old 09-05-17, 08:11 AM
Group Moderator
Join Date: Oct 2004
Location: WI/MN
Posts: 18,758
The difference I've seen in the duty rating of a tire increasing is that the sidewall seems stiffer, so more weight does not cause the tire to squat as much. That does make a difference in how it handles when steering the vehicle. If even once a year and there's no issue like the rub Vermont mentioned, I would want my tire's rating to exceed the load.
Old 09-05-17, 09:24 AM
Group Moderator
Thread Starter
Join Date: Mar 2003
Location: NC, USA
Posts: 18,121
I have tons of room so going up to 225 will be no problem.

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread
Display Modes