Cylinder Barrel Kit Rieju RR50 98-02 / RS1 97-02 / SMX50 01-02 - Big Bore 70cc

Rieju RS1 50 Castrol (1999-2001). Rieju RS1 50 Evolution (1997-2002). Rieju RR 50 Castrol (1999-2002). Rieju RS1 50 Race (2001-2002). Rieju RR 50 Spike (1998-2002). Rieju RR 50 Spike Pro (1999-2002). Rieju RR 50 Thunderfire (1997-2002).