Lambretta RB25 High Performance Race Crankshaft Mazzucchelli 60mm Stroke 107mm Conrod AF Rayspeed Bearings Seals & Gaskets_Oil Seal Kits CHINESE 150cc 4 STROKE SCOOTERS Size:M (57 58cm) CHINESE 150cc 4 STROKE SCOOTERS WITH GY6 MOTOR 3 50 2003 2004 4600000 MALAGUTI F15 FIRE FOX AIR COOLED 50 2005 2006 73K20173 MALAGUTI YESTERDAY YESTERDAY EURO 50 1997 2000 45 MBK CS MACH G EURO2 50 2002 2004 5RW MBK YA R FORTE (CHE ITA) 50 1994 1996 4PC MBK YE EVOLIS (ITA) 50 1992 1995 4EF MBK YH FLIPPER 50 1998 1998 5EU MBK YH FLIPPER 50 2001 2002 5PF MBK YH FLIPPER CATALITICO 50 1999 2000 5LD MBK YH FLIPPER EURO2 50 2003 2004 5UB MBK YM FIZZ (ITA) 50 1994 1995 4KH MBK YN R OVETTO EURO1 50 2002 2004 5RN MBK YN R OVETTO EURO2 50 2002 2003 5RN YAMAHA CS JOG R 50 2002 2002 SA221 YAMAHA CS JOG R 50 2006 2012 SA22V YAMAHA CS JOG R EURO2 50 2002 2005 SA224 YAMAHA YA R AXIS 50 1995 1996 4PC3 4PC6 YAMAHA YH WHY 50 2001 2002 SA03B YAMAHA YH WHY 50 2006 2006 SA03E YAMAHA YH WHY EURO1 50 1999 2000 SA031 YAMAHA YH WHY EURO2 50 2003 2005 SA03E YAMAHA YM BREEZE 50 1994 1995 4KH1 4KH3 YAMAHA YN NEO'S 50 2004 2006 SA211 YAMAHA YN NEO'S 50 2007 2012 SA341 YAMAHA YN NEO'S 50 2012 2016 SA451 YAMAHA YN NEO'S EASY 50 2013 2013 SA457 YAMAHA YN NEO'S EURO2 50 2002 2003 SA211 YAMAHA YN R NEO'S 50 1997 2001 5AD SA151 YAMAHA YN R NEO'S 50 2002 2002 SA151 Italian Mazzucchelli Made for AF Rayspeed with strength for the RB 250 Kit The RB22 as standard uses a 58mm crank with a 107mm rod