I just purchased a new Grand Designs Reflection 295RL and it came with West Lake Super ST225/75R15LRE which has a speed rating of "L" (75mph) Just as a video about someone changing to Goodyear Endura...
After 2 blowouts on Westlakes on our GD 303rls I changed to Goodyear Endurance and they have been great. I am a fanatic about always checking air pressure before starting off each day and I use an infrared gun to check for heat build up at each stop checking bearings and tires. Never noticed any heat buildup in the tires before the blow. Didn't know about a warranty on the Westlakes or I would have taken pictures and saved the carcasses for new tires for my utility trailer.
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