BSA B44 / B40 Piston Ring Set +040. 80mm
AA131. 41-0098+40. 41-0092+40. 9182+40. 9183+40. 41-98.BSA B44 Piston Ring Set +040
Top rings are 1/16” thick and 1/8” wide
Oil ring 1/8” wide and 1/8” thick
fit also Norton 16H,ES2 and Model 18 Original Piston
Thickness: 1,55mm/3,15mm
+040 =80.00 mm
check thickness of piston rings
Gandini