Tire speed
Never saw this question asked, say your truck has 275/70/18 tires your trailer has 225/75/15 speed rated 65, if you’re truck is doing 65 how fast are your trailer tires going what I am getting on a ti...
Forum Discussion
Jerry (the OP),
Wading through all the joking above ... I'm guessing that you have now figured out that the smaller the diameter of the tire, the more times it rotates per mile over the rotations of a larger diameter tire.
What this means is that smaller diameter tires are wearing faster at any average vehicle/trailer rate of travel than larger diameter tires. This faster spinning of a smaller diameter tire also generates more heat in the tire per mile.
Case in point, when my Brother-In-Law was shopping for a new small RV trailer I recommended that he get one both with double axles (for more safety in case one tire on one side should fail at speed) and large as possible diameter tires to minimize tread wear and tire degradation from heat.
I shake my head at all the tire life and reliability complaints that RV trailer owners post in the forums. It's no wonder this is going on .... just compare the little donut tires on many RV trailers - that are in many cases carrying a relatively high weight load - to the larger diameter and beefy looking tires on Class B and C motohomes that may be carrying similar weight loads. I have often wondered why trailer owners don't increase the diameter of their trailer tires at replacement time if the clearance is there to allow it.
Wading through all the joking above ... I'm guessing that you have now figured out that the smaller the diameter of the tire, the more times it rotates per mile over the rotations of a larger diameter tire.
What this means is that smaller diameter tires are wearing faster at any average vehicle/trailer rate of travel than larger diameter tires. This faster spinning of a smaller diameter tire also generates more heat in the tire per mile.
Case in point, when my Brother-In-Law was shopping for a new small RV trailer I recommended that he get one both with double axles (for more safety in case one tire on one side should fail at speed) and large as possible diameter tires to minimize tread wear and tire degradation from heat.
I shake my head at all the tire life and reliability complaints that RV trailer owners post in the forums. It's no wonder this is going on .... just compare the little donut tires on many RV trailers - that are in many cases carrying a relatively high weight load - to the larger diameter and beefy looking tires on Class B and C motohomes that may be carrying similar weight loads. I have often wondered why trailer owners don't increase the diameter of their trailer tires at replacement time if the clearance is there to allow it.
