Tire Wear Question
I have a Seismic 355W and I picked it up from storage today. I was underneath just checking stuff and notice cupping on the edge of my tires. Both sides. Left front is the worst, with significant cupp...
Forum Discussion
Ok, here is the response I received from Sailun.
"It is normal for the pressure to increase by 15% to 20% in normal operating conditions. The tires are engineered with this fact in mind."
And this one caught me by surprise, as I have always thought differently.
"In your case, the cupping is likely a result of over inflation. Over inflation causes a “rounded” or “crowned” footprint on the road where the shoulders are not touching. This creates a constant squirm causing the cupping you describe.
Most trailer manufacturers design their trailers to take 80 psi in the tires to carry the load. What you need to do is to weigh your trailer fully loaded then divide by the number of tires to find the per tire weight. You can then use the attached load and inflation chart to find your tire size, weight per tire and recommended air pressure. I am going to guess it will be around 80 psi. You can build 5-10 psi safety into the pressure you use. It is safe to run less than 110 psi in the Sailun tires. They were engineered to meet the load and inflation shown on the chart."
According to the chart I was sent, I should be at 80lbs for the weight on my axles. I have always run my tires at max pressure, but I upgraded to G rated because the E rated were running close to max load and for piece of mind. I guess for I will try a lower pressure and see if that makes a difference.
And I check my tires and feel the hubs for excessive heat whenever I stop while traveling. It's one of the reasons I started using TPMS, I want to catch a problem before it becomes a bigger issue if possible.
BTW...Sailun was very responsive to my inquiry, which I found admirable.
"It is normal for the pressure to increase by 15% to 20% in normal operating conditions. The tires are engineered with this fact in mind."
And this one caught me by surprise, as I have always thought differently.
"In your case, the cupping is likely a result of over inflation. Over inflation causes a “rounded” or “crowned” footprint on the road where the shoulders are not touching. This creates a constant squirm causing the cupping you describe.
Most trailer manufacturers design their trailers to take 80 psi in the tires to carry the load. What you need to do is to weigh your trailer fully loaded then divide by the number of tires to find the per tire weight. You can then use the attached load and inflation chart to find your tire size, weight per tire and recommended air pressure. I am going to guess it will be around 80 psi. You can build 5-10 psi safety into the pressure you use. It is safe to run less than 110 psi in the Sailun tires. They were engineered to meet the load and inflation shown on the chart."
According to the chart I was sent, I should be at 80lbs for the weight on my axles. I have always run my tires at max pressure, but I upgraded to G rated because the E rated were running close to max load and for piece of mind. I guess for I will try a lower pressure and see if that makes a difference.
And I check my tires and feel the hubs for excessive heat whenever I stop while traveling. It's one of the reasons I started using TPMS, I want to catch a problem before it becomes a bigger issue if possible.
BTW...Sailun was very responsive to my inquiry, which I found admirable.
