Supplier Order code: BRGN006. Designed specifically for 2-stroke 50cc scooter engines, this bearing is a crucial component for your crankshaft. Benelli: 491RR SBK 50 [2000-2004], 491ST Rage 50 [2000-2004], 491 Sport 50 [1998-2004], 491 Superbike 50 [1999], K2 50 [1998-2003], K2 Namur 50 [1999-2003], Naked 50 [2001-2003], Pepe 50 [1999-2007].