S&S CYCLE - BREATHER REED VALVES - CRANKCASE - +0.030" OVERSIZE - EVOLUTION BIG TWIN '93-'99 drag_part_09343149 Eliminates valve spring separation

Eliminates valve spring separation

Include everything needed to rebuild Feuling® HP+® and Race Series oil pumps

no matter how hard you push your M8

2009 Moto Guzzi Breva 850

S&S CYCLE - BREATHER REED VALVES - CRANKCASE - +0.030" OVERSIZE - EVOLUTION BIG TWIN '93-'99 drag_part_09343149 Eliminates valve spring separationBreather Reed Valves Crankcase +0. 030" Oversize Evolution Big Twin '93 '99 Highlights New style breather is not dependent on the rotation of the crankshaft to make it open and close. Instead, reeds open when pressure in the crankcase becomes greater than pressure in the cam chest, and close when pressure in the cam chest is equal to or greater than pressure in the crankcase By opening and closing "on demand," the reed valves automatically compensate