So I am modifying my trailer for multi use. I'm wondering if it is worth it to run the same size and type tire on the trailer as my rig? My wondering if the tread needs to be as aggressive since they are not actually providing traction by rotating under power? I would think that they would be better off floating on whatever surface you are running on. Height wise I can see that matching the size would be benificial for climbing obstacles, but wonder at what point will the trailer be parked anyway so rougher trails could be run? If I am going to run the same combo on the trailer as the rig, I want to make sure it is not just for the cool factor.
Lator.....
Its tough to provide any meaningful information without knowing what you use for a tow rig and trailer and how you actually use the trailer. [On road only, dirt roads, tough trails, mall crawling? Do your tow rig and trailer already share the same lug pattern? Current tire size on tow rig? Tire clearance issues on trailer? Can you easily carry a trailer specific spare?]
Although the "common wisdom" is to match tire size on tow rig and trailer, doing so is not always a straight forward process nor is it always the best solution. You will need to engage in some cost/benefit analysis and compare pros and cons. I've matched tow rig and trailer tires in the past, but did not when I towed with a CJ-7 on 35s nor do I now with an Xterra on 32s as my tow rig. I found it simpler and far less expensive to use a trailer specific spare than to convert the trailer axle to one with a Nissan lug pattern.
One thing I can answer is that it is not necessary to use aggressive tread tires on a trailer as those tires will not be on a drive axle. However, if you intend to use your trailer tires as tow rig spares you would probably want to match tread.
