TM 9-2320-363-10 1-12. EQUIPMENT  DATA  (Con’t). Table  1-1.  Equipment  Data  (Con’t). Data Wheels: Size Number  of  Studs/ Stud  Size Tires: Type Size Model M917A1/ M917A1 M915A2 M916A1 M916A2 w/MCS 22.5 x 8.25 22.5 x 9 in. 22.5 x 9 in. 22.5 x 9 in. in. 10/1.125 in. 10/1.125 in. 10/1.125 in. 10/l.125  in. tubeless, tubeless, tubeless, tubeless, radial on- radial  on/off radial  on/off radial  on/off highway road road road 11R22.5 80R22.5 80R22.5/ Front: XZY-1 65R22.5/XZY Rear: 80R22.5/ XZY-1 Ply Rating 14PR 18PR 18PR 18PR Load Range H L L Front:J Rear:L Inflation  Pressure (Maximum  Load): Front 105  psi 115  psi 115  psi 90 psi (724 kPa) (793  kPa) (793 kPa) (621  kPa) Rear 100  psi 90  psi 90 psi 90  psi (690  kPa) (621  kPa) (621 kPa) (621  kPa) Spare 105 psi 115 psi 115 psi 90  psi (724 kPa) (793  kPa) (793 kPa) (621  kPa) Steering: Ross Ross Ross Ross Manufacturer Steering  Gear  Type Single  gear Single  gear Single  gear Single gear 1-21