clearance issues for using 13" radial tires on my Aliner

Discussion in 'Tires / Brakes / Bearings / Axles' started by Anthony Hitchings, Oct 18, 2021.

  1. Anthony Hitchings

    Anthony Hitchings Well-Known Member

    Messages:
    3,056
    Likes Received:
    1,809
    Joined:
    Mar 2, 2019
    Location:
    Oakland, California
    using a template I determined that I have unequal side clearances between sidewall of a future 13" radial (ST175R90) and the inside face of the wheel well, the clearance on the inner side is about double that I would have on the outboard side.

    To remedy this I need to do both of these things:

    Buy wheels with +0.5" offset (moves wheels inboard 0.5")

    Also buy and install 1/8" thick wheel (hub) spacers to move wheels outboard 1/8"

    The net result is +3/8" offset.

    Any comments?
     
  2. Sjm9911

    Sjm9911 Well-Known Member

    Messages:
    10,644
    Likes Received:
    8,026
    Joined:
    May 31, 2018
    Location:
    Nj
    Would it reduce weight carrying capacity? I know lifting trucks, and bigger rims sometimes equates to less capacity. Pther then that they will stick out a bit more.
     
    DiamondGirl likes this.
  3. Anthony Hitchings

    Anthony Hitchings Well-Known Member

    Messages:
    3,056
    Likes Received:
    1,809
    Joined:
    Mar 2, 2019
    Location:
    Oakland, California
    not significantly - its only a small net offset
     
  4. Anthony Hitchings

    Anthony Hitchings Well-Known Member

    Messages:
    3,056
    Likes Received:
    1,809
    Joined:
    Mar 2, 2019
    Location:
    Oakland, California
    And so it begins. I bought the two spacers, and I bough two 13" wheels [rims] (not one, in order to get free shipping).

    I will install the wheels and spaces and use a tire template to recheck clearances before ordering the radial tires.
     
  5. WrkrBee

    WrkrBee Un-Supported Member

    Messages:
    6,548
    Likes Received:
    3,454
    Joined:
    May 23, 2018
    Location:
    South Carolina
    Don't you need a 13" spare?
     
  6. Anthony Hitchings

    Anthony Hitchings Well-Known Member

    Messages:
    3,056
    Likes Received:
    1,809
    Joined:
    Mar 2, 2019
    Location:
    Oakland, California
    Because I will be using 13" rims with +0.5" offsets, and they are not common at local dealers, I will carry two spares.
    (especially since I ground down one rim lip on a prior trip, at night, see separate post)

    Spares will be bought only after road testing on two 13" road wheels with radial tires confirms a lack of side-rubbing inside the wheel wells.
     
    Sjm9911 likes this.
  7. Anthony Hitchings

    Anthony Hitchings Well-Known Member

    Messages:
    3,056
    Likes Received:
    1,809
    Joined:
    Mar 2, 2019
    Location:
    Oakland, California
    rims arrived and installed with spaces, checked future tire clearance (in the rain) with a template, and found that 13" rims will fit with good lateral clearances to the wheel well liner.

    Monday I will call my local tire guy about what he can buy for me. Probably I won't like his answer and will buy tires online.
     
    Sjm9911 likes this.
  8. Anthony Hitchings

    Anthony Hitchings Well-Known Member

    Messages:
    3,056
    Likes Received:
    1,809
    Joined:
    Mar 2, 2019
    Location:
    Oakland, California
    My hub spacers OD is not large enough (5.75" not 6") for full contact (same contact patch as direct wheel-to-hub, based on paint rub off).
    So the hub spacers will not be used. Clearances should still be OK based on remeasuring with tire template.
    Now waiting on tires from eTrailer.
     

Share This Page