Fits: > 39-53 B

The left side generator style crankcase will fit 70-up style primary and transmission

Manufactured with 36 gauge (0

deflective disc damping and no bottoming out under any load

Fits: > 80-00 5-sp B

Hasting Rings Shovel 80" +.020 M8 2018-up Fits: > 39-53 BStd cyl. bore: 3. 498" (88. 85mm). 1st ring: 1. 6mm. 2nd ring: 1. 6mm. oil ring: 4. 75mm. Tech tip: Piston grooves vs piston rings. It's not difficult to determine if a Hastings piston ring set will fit a certain piston. You should measure the height of the piston groove in the piston itself. The 2 top grooves will be for compression rings, the lower groove will be for the oil ring. In most cases Hastings oil rings are of the low tension 3 piece flex