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Load rating on tires

Discussion in 'Trucks and Trailers' started by South Florida Lawns, May 16, 2008.

  1. South Florida Lawns

    South Florida Lawns LawnSite Platinum Member
    from usa
    Posts: 4,785

    Does anybody know what the load rating SL means? The new tires I'm looking at are that rating and I can't seem to figure out what that means. I think its "standard load" but then why don't they call it for instance a B, D, or and E load rating?
  2. eric22

    eric22 LawnSite Member
    Posts: 25

    standard load and xl is extra load.
  3. farmboy555

    farmboy555 LawnSite Member
    Posts: 45

    the rate is 2 ply per lettering starting with A=2 ply, D is 8 and E is a 10 ply tire.
  4. GravelyNut

    GravelyNut LawnSite Bronze Member
    Posts: 1,594

    Not even true. I have 5-ply tires on my truck that are Load Range E. Load Range is a factor of tire pressure, cord strenght, and size of the tire.

    The van has FR440XL tires. They are rated at 41 PSI as compared to 32 PSI for standard load tires of the same type. Some makers mark the SL tires and some don't. Extra Load tires are always marked.

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