Fits 1999 Honda XR400R Ring Set,br>
RAD Powersports Replacement Ring Set; XX type sets consist of Top Ring, Compression Ring, and Oil Ring; Stainless steel, gas intruded barrel faced Top Ring; Cast iron, phosphate coated, taper
faced under hook Compression Ring; 3
piece oil assembly Oil Ring; Stamped ring type and bore size on the dome of the piston; Only for RAD Powersports pistons

RAD Powersports Replacement Ring Set. XX type sets consist of Top Ring, Compression Ring, and Oil Ring. Top Ring: Stainless steel, gas intruded barrel faced. Compression Ring: Cast iron, phosphate coated, taper-faced under hook. Oil Ring: 3-piece oil assembly; Stainless steel flex-vent spacer, nitrided rails. The ring type and bore size (in mm) is stamped on the dome of the piston. Refer to this information to order the correct replacement rings. Ring styles cannot be interchanged. Please note: Only RAD Powersports replacement ring sets may be used on RAD Powersports pistons.