Several RVers reported serious issues with Rainier tires on their Montana 331 RLs, including multiple tread delaminations within just a few thousand miles. The original poster and others are considering switching to Sailun tires, debating between G and H load ratings. Most members agree that G-rated Sailuns are standard and sufficient for the Montana 331 RL, with one moderator confirming they are more than adequate for the trailer’s weight. However, some with heavier or newer models (like...
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Several RVers reported serious issues with Rainier tires on their Montana 331 RLs, including multiple tread delaminations within just a few thousand miles. The original poster and others are considering switching to Sailun tires, debating between G and H load ratings. Most members agree that G-rated Sailuns are standard and sufficient for the Montana 331 RL, with one moderator confirming they are more than adequate for the trailer’s weight. However, some with heavier or newer models (like the 3901RK) have opted for H-rated tires for extra capacity and peace of mind.
A few members shared experiences with alternative brands like Carlisle and Hercules, often chosen out of necessity during breakdowns. Those who upgraded to higher load ratings (G or H) generally report improved reliability and no further tire issues. The consensus is that G-rated tires are suitable for most Montana 331 RLs, but H-rated options may be preferred for heavier rigs or those seeking additional safety margins.
