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Just be careful when running larger tires on a commercial 19.5 rim. If you get a blowout or tire/wheel failure and cause and accident, you can get in big trouble. 19.5" wheels are specifically designed for 1 size tire. They do not support wider tires well and you significantly decrease your payload capacity and increase the possibility of a catastrophic tire failure when going up in size. The bead on a 19.5" tire is totally different than a LT tire. I'm not trying to be the "wheel tire cop" but just keep that in mind.
My tires aren't LT. They are a heavy truck tires. My 265s and my buddy's 285s tow a bunch loaded heavy. Not sure why OK Tire and Les Schwab didn't say anything when they installed the tires.
My tires aren't LT. They are a heavy truck tires. My 265s and my buddy's 285s tow a bunch loaded heavy. Not sure why OK Tire and Les Schwab didn't say anything when they installed the tires.
That's the issue. Commercial Tires (19.5") have a completely different bead than LT tires and don't hug and join to the bead the same. They are made to be field serviceable and have a much smooth bead connection. LT and Passenger car tires "seat" on the bead much tighter and "lock" differently when mounted. You are ONLY supposed to run 225 tires on a 19.5"x6" wheel to get the proper seat. A wider tired puts you at risk of the beat unseating and sliding off the edge of the rim.
Just like shopping for a new diesel truck, the Sales reps aren't usually the most informed on the product they sell.
Here is an OLD video I did on the topic, using my past 2016 F450 as an example.
^^Agreed. Your tire shop was uninformed. It's a 6" rim; Ford puts a 245 LT tire on their 350 duallys on a 6.5" rim; a 265 LT tire goes on a 7.5" rim, and a 275 LT tire goes on an 8" rim. Hey, you can do what you want but I'd say you're asking for trouble.
My tires aren't LT. They are a heavy truck tires. My 265s and my buddy's 285s tow a bunch loaded heavy. Not sure why OK Tire and Les Schwab didn't say anything when they installed the tires.
I'd say the tire shop was reckless and irresponsible for even mounting a 265 on a 6" rim, even worse that they didn't caution you. The tire manufacturers are very clear that you need a 6.75" rim for even the 245 width commercial tire. They know their tires better than any Internet opinions you may get here, and they are clear that this is not OK.
03-07-2018, 08:16 PM
