3.937 x .875 Ring Set: 1.0mm, 1.2mm, 2.8mm

-File-to-fit rings for 3.937 Bore Size Arias Piston with .875 Compression Height
-Conventional 3-Ring Set
-Ring widths: Top Ring – 1.2mm, Second Ring – 1.2mm, Oil Ring – 2.8mm