Issue link: https://read.dmtmag.com/i/34500
SELECTING A WHEEL OUTSET/INSET Outset: The lateral distance from the wheel centerline to the mounting surface of the disc. Outset places the wheel centerline outboard of the mounting (hub face) surface. Inset: The Inset places the wheel centerline inboard of the mounting (hub face) surface or over the axle. USE OF 2" OUTSET WHEELS WITH MICHELIN ® ® ® ® X ONE TIRES The MICHELIN X One tires (445/50R22.5 and 455/55R22.5) require the use of 14.00 x 22.5" wheels. The majority of the wheels currently offered have a 2" outset. Some axle and hub manufacturers have recently clarified and confirmed their position concerning the use of such wheels with their respective components. While the position of the component manufacturers is not totally consistent, the majority view concerning the retrofit of duals with MICHELIN as follows: ® X One tires can be summarized ® Axle Type* Spindle Type Wheel Recommendation Drive axles Trailer axles “R” 2" outset wheels “P” 2" outset wheels Trailer axles “N” Check with component manufacturer * Many other axle and spindle combinations exist. Contact axle manufacturer. Truck and trailer manufacturers may have different specifications. For optimum track width, stability, and payload, end-users should talk to their trailer suppliers about the use of 83.5" axles with zero outset wheels. End-users that have retrofitted vehicles with 2" outset wheels should contact their respective vehicle, axle, or component manufacturers for specific application approvals or maintenance recommendations. NOTE: Use of outset wheels may change Gross Axle Weight Rating (GAWR). Consult vehicle and component manufacturer. DROP CENTERS The Drop Center is the well or center portion of the wheel. This is what allows the tire to be easily mounted on a single piece wheel: the tire bead will “drop” into this cavity. The 14.00 x 22.50" (15-degree bead seat) drop center tubeless wheel required for the MICHELIN ® X One tire ® has differently styled drop centers depending on the manufacturer. Accuride ® ® aluminum (part #29660) and steel wheels as well as Hayes Lemmerz steel wheels are produced with a narrow ledge on one side and a long tapered ledge on the other. The narrow ledge is necessary to ease the mounting and dismounting process. The Alcoa aluminum wheel is manufactured with Disc Face a narrow ledge on either side. This allows it to be mounted and dismounted from either side. Narrow Ledge Outboard Inboard OUTSET Accuride Always ensure the narrow ledge is up when mounting or demounting. Disc Face Outboard Inboard INSET Alcoa 4 Tire and Wheel Nomenclature