I’ve got a new Ford f550 that I plan on using to haul a large truck camper (11-12’ floor) and I think I’ve decided I want to do a super single conversion. The biggest concern I have is the speed rating on the tires. This truck will spend a lot of time with the camper off and while I will never go over ~65 with the camper on, with it off I would really like to be able to go faster.
The tire I would like to go with is the continental mpt 81 335/80r20 for several reasons. Now the rating on them is 68mph and a little over 6700lbs per tire. With the camper off the truck weighs about 11,500lbs with about 6000lbs on the front axle and 5500lbs on the rear. I have always heard that a tire speed rating is with the tire at its max weight capacity. With the front tires only having 3000lbs on each which is well less than half, what do you think is the fastest I could safely go? I would really like to be able to do 80 without worrying too much. Another point to add is that I don’t let my tires get super low on tread and I frequently rotate them and constantly monitor the psi in them.
The tire I would like to go with is the continental mpt 81 335/80r20 for several reasons. Now the rating on them is 68mph and a little over 6700lbs per tire. With the camper off the truck weighs about 11,500lbs with about 6000lbs on the front axle and 5500lbs on the rear. I have always heard that a tire speed rating is with the tire at its max weight capacity. With the front tires only having 3000lbs on each which is well less than half, what do you think is the fastest I could safely go? I would really like to be able to do 80 without worrying too much. Another point to add is that I don’t let my tires get super low on tread and I frequently rotate them and constantly monitor the psi in them.