How can I tell if I have enough room to go to a 85 tire
I want to switch from 235/80/16 to 235/85/16 tires how do I make sure I have the room for it and if I don't are the maxis moo8 tires the best ones to stay with.
Forum Discussion
11 Replies
Durb wrote:
I have a similar question and am considering Michelin 235/85/16 Ribs which are 32" OD. I could use an extra half inch to level the trailer. My question is how much suspension travel is there on a trailer? My overhead clearance is not that much. I do have TorFlex axles.
"Not that much" For leaf springs 3-4" is the common requirement. Do not know much about TorFlex axles. The manufacturer should have a recommendation. Chris- I have a similar question and am considering Michelin 235/85/16 Ribs which are 32" OD. I could use an extra half inch to level the trailer. My question is how much suspension travel is there on a trailer? My overhead clearance is not that much. I do have TorFlex axles.
- 235/80/16 will be 30.8" tall
235/85/16 will be 31.75" tall
With a very little bit more math and a tape measure you can see for yourself - Aspect ratio and diameters are supposed to be determined by that size figure cast in on the sidewall rubber. In the real world, you need to look at the tire manufacturer's website for the specs for the tire you are interested in using. Also, the Tire Rack website, which I use as my 'font of tire information' and occasional purchase point will have most of the popular brand tires and a few trailer tires listed.
- Slightly wider is correct. By 10 mm. The 245s that is.
- Go to the Tire Mfr site, most will give you all the specs for their tires, including OD.
- Check the specs on the tire you are thinking of buying, they should list diameter, then check what the diameter of the tire you presently have. Even though a tire may show the same size, i.e. 235/85x16, they may not be the same physical size. Your best bet is to measure your present tire and go from there. And don't forget to consider suspension travel when figuring overhead clearance.
I went from 235/80x16 and 3 1/2 inches of clearance to 235/85x16 and now have about an 2 inches of clearance. donn0128 wrote:
245 75s are a good option too. Same load rating, slitely narrower.
Slightly wider!
Sailun makes the S637 all steel ply tire in a ST235/80R16G that is the same size as common maypops.
Chris- First measure center to center between the axles, you need at least 33". Then check your clearances above the tires. Chris
- 245 75s are a good option too. Same load rating, slitely narrower.
