b'5.39 MudwingsTyre Size ChartW P R DThe tyre size is made up of several parts, the Wwidth, diameter, rim, load & speed rating1 5 / 70 R 2 2 .3 5Ref Description SizeW Width of tyre in mm 315mm DP Profile as apercentage of the 70% of 315 =width 220.5mmR Radial PD Dia of wheel 22.5"Aluminium MudwingsOAL WAlloy Plain Alloy Chequer RType Width (mm) Radius (mm) OAL (mm) Wheel Size Ref: Part No.Chequer 420 (16.5) 635 (25) 2070 (81.5) 325/65R18, 6.5R20 30A-ACH 9503720Chequer 650 (25.5) 660 (26) 2135 (84) 12/80R20, 12/70R22.5, 275/80R22.5, 50B-ACH 9510309295/80R22.5 rigid, 305/70R22.5,315/70R22.5Chequer 700 (27.5) 650 (25.5) 2095 (82.5) 13R20, 315/70R22.5, 315/80R22.5 52A-ACH 9510152Chequer 455 (18) 650 (25.5) 2060 (81) 425/55R19.5, 16.5R22.5 54A-ACH 1963911Plain 420 (16.5) 635 (25) 2070 (81.5) 325/65R18, 6.5R20 30A-ALU 9506965Chassis & Body Plain 650 (25.5) 660 (26) 2135 (84) 12/80R20, 12/70R22.5, 275/80R22.5, 50B-ALU 9506966295/80R22.5 rigid, 305/70R22.5,315/70R22.5Plain 700 (27.5) 650 (25.5) 2095 (82.5) 13R20, 315/70R22.5, 315/80R22.5 52A-ALU 1963912Plain 455 (18) 650 (25.5) 2060 (81) 425/55R19.5, 16.5R22.5 54A-ALU 1963913www.trpparts.com'