Fits: > L76-84 B

Fits models with tank shifters and foot operated clutches

Replaces front OEM 90-36 (36-47 Knuckle) Replaces rear OEM 91-36 (36-40 Knuckles) and 91-41 (41-47 Knuckles) housings

3 3/4" BORE

Hasting Piston Rings Sportster 883 + .010 Mikuni Fits: > L76-84 BStd cyl. bore: 3. 00" (76. 20mm). 1st ring: 1. 5mm. 2nd ring: 1. 5mm. oil ring: 2. 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