AFAM offers this 520XRR3 chain kit with a 14-49 gear ratio, designed for demanding off-road riding where consistent power delivery and the mechanical strength of your BETA RR 300cc are essential. It is intended for riders seeking a more responsive engine while maintaining excellent component durability. The reinforced X-Ring chain minimizes internal friction and maintains effective lubrication, which improves the kit’s overall lifespan even in abrasive conditions. The ultra-light aluminum sprocket reduces rotating mass, promoting better acceleration and a more agile riding feel. The sprocket’s anti-mud coating helps limit the buildup of deposits, ensuring smoother power delivery in dust, mud, or sand. Together, these features provide a reliable solution for optimizing performance without sacrificing durability on challenging terrain.

Fits:

2019 BETA RR 300 2-Stroke Enduro

2018 BETA RR 300 2T ENDURO

2017 BETA RR 300 2T ENDURO

2019 BETA RR 300 2T ENDURO RACING

2018 BETA RR 300 2-Stroke Enduro Racing

BETA RR 300 2-Stroke Enduro Racing 2017