3 3/4" BORE

Bendix & Keihin carbs (excl

Fits: > L76-84 B

Used in combination with early OEM style handlebars

Clamp-on frame tube front solo seat bracket

Hasting Piston Rings Sportster 883 + .010 Mikuni 3 3/4" BOREStd 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