Piston ring set : Wellworthy Mile Master : NOS Shop soiled

A2/161, A2/162, 19778, 19779, M31+30
Part no.: R3750+30
Availability: 2 in stock

490cc : 79mm + 30 : 0.060" Comp ring x 2 : 1/8th oil ring

Years: 1931-1957