Are Castle Rock Tires Prone to Blowouts


my new fifth wheel has 225/75/r15 castle rock tires. people say they are prone to blowouts. any truth to this? thank you


Helpful Expert Reply:

This conversation is always a slippery slope because most folk's opinions are usually based solely on their personal experience and not in comparison to the entire market. Blowouts are almost always caused by something more than just how the tire was built, but there are some characteristics of a tire to consider when choosing which tire you want on your trailer.

For example, Castle Rock is an economy trailer tire. If we compare it to the Goodyear Endurance ST225/75R15 Tire, # 724857519, then I can tell you that Goodyear has extra sidewall protection/thickness built into their tire and additional tread siping for better traction and heat dissipation. It also has a higher speed and load rating than the Castle Rock equivalent. In this comparison, the Castle Rock tire would be more prone to blowouts assuming one of the external factors that typically cause a blowout are present such as overloading, speeding, odd tread wear such as flat spots, rubbing, etc. which would indicate braking, spindle or axle alignment issues or constant sun exposure when stored.

This would be similar to comparing a Sumitomo tire (bargain brand automotive tire) to a top of the line Michelin tire.

helpful expert reply by:
John H

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