According to the data provided by the manufacturer, this item is compatible with the following makes, models and years: COMPATIBLE WITH APRILIA RS4 125 125 2011-2017 COMPATIBLE WITH APRILIA RS4 50 50 2012-2016 COMPATIBLE WITH APRILIA RX 125 125 2018-2020 COMPATIBLE WITH APRILIA TUONO 125 125 2017-2019 COMPATIBLE WITH DERBI GPR 125 4T 125 2009-2013 COMPATIBLE WITH DERBI GPR 50 NUDE 50 2004-2005 COMPATIBLE WITH DERBI GPR 50 R 50 1997-2008 COMPATIBLE WITH DERBI GPR 50 R NUDE 50 2000-2008 COMPATIBLE WITH DERBI GPR 50 RACING 50 2004-2008 COMPATIBLE WITH DERBI GPR 50 REPLICA 50 1999-2008 COMPATIBLE WITH DERBI GPR 50 REPLICA MALOSSI 50 2007 COMPATIBLE WITH DERBI GPR 50 REPLICA PESEK 50 2007 COMPATIBLE WITH DERBI GPR 50 REPLICA RACING 50 2002-2005 COMPATIBLE WITH DERBI MULHACEN 125 125 2007-2009 COMPATIBLE WITH DERBI MULHACEN 660 660 2006-2008 COMPATIBLE WITH DERBI TERRA 125 125 2007-2009