size                    PR    standard rim   load index   pattern depth   speed rating   max load     pressure     section width   

 385/65R22.5    18    11.75               158               16.0(mm)           K                       4250             850/850      389 

 385/65R22.5     20    11.75               160               16.0(mm)           K                       4500            900/900      389

overall diameter

1072(mm)

1072(mm)

radial truck tyre 385/65R22.5