RMS Movable Drive Half Pulley Piaggio Vespa LX 150cc Runner Boards If set up with 18 LambrettaFrameBodyworkAll If set up with 18 47 sprockets it will have the following drive ratios GT GTS GTV 125 200 250 300 LX 50 125 150 BRAND MODEL CC YEARS CHASSIS DERBI BOULEVARD 125 150 EU2 150 2004 2007 DERBI BOULEVARD 4T E3 150 2010 2010 M57200 DERBI SONAR 4T 150 2009 2009 LS3A1A PIAGGIO FLY 150 2005 2007 M42200 PIAGGIO FLY EURO3 150 2008 2011 M57100 PIAGGIO LIBERTY 4T EURO3 150 2008 2008 M38700 PIAGGIO LIBERTY MOC 4T EURO3 150 2009 2013 M67200 PIAGGIO SKIPPER 4T 150 2000 2002 M2100 PIAGGIO VESPA LX 150 2005 2006 M44200 PIAGGIO VESPA LX 4T FL 150 2009 2009 M44400 PIAGGIO VESPA LX EURO 3 150 2006 2008 M44400 PIAGGIO VESPA LX EURO 3 IE 150 2009 2011 M68200 PIAGGIO VESPA LX TOURING 150 2010 2012 M68200 PIAGGIO VESPA S 4T 150 2008 2009 M44402 PIAGGIO VESPA S 4T IE & COLLEGE 150 2009 2012 M68201 PIAGGIO X8 STREET EURO 2 150 2006 2008 M49200 features and compatibility equal to original spare parts (OEM)