Issue link: https://read.dmtmag.com/i/34500
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 view of the wheels currently offered have a 2" outset. Some axle and hub manufacturers have 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 dual with MICHELIN X One tires can be summarized as follows: ® ® 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. A trailer specified with 83.5" inch axles is intended for single tire use. Switching to dual tire configuration could exceed the legal maximum overall width of 102". 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. AXLES TRACK WIDTHS Three standard trailer axle track widths are available. They are 71.5", 77.5", and 83.5". A typical tandem drive axle track width is approximately 72". Check with the axle manufacturers for other sized options. Axle width is measured from spindle end to spindle end (the two widest points). Axle track is a center to center distance between the dual or center of single tire to center of single tire. 71.5" is a standard axle track width found on bulk and liquid tankers. 77.5" is a standard axle track width for 102" wide trailers. 83.5" is the newer wider track axle intended for use with wide singles and 0" outset wheels for increased track width, stability, and payload. VEHICLE TRACK With a standard length axle and 2" outset wheels, the resulting variation in track width is an increase of approximately 1.5" per side (3" total) as compared to a dual tire configuration. 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. Measurements are rounded. 77.5" Track Width 0" Offset 101.5" 80.5" Track Width 2" Offset 97.9" Note: Measurements are nominal values and could vary with manufacturer. Truck Technical Specifications 15