AFAM offers this 520 XRR3 chain kit in a 14-49 configuration, specially designed for heavy-duty off-road and motocross use on your BETA XTRAINER 250cc and BETA XTRAINER 300cc. It is intended for riders seeking a reliable drivetrain capable of withstanding the high stresses of repeated acceleration and demanding terrain. The ultra-light sprocket reduces rotating mass, which improves engine responsiveness and acceleration feel. The anti-mud treatment limits dirt buildup, ensuring smoother operation even in wet or sandy conditions. The reinforced chain design ensures greater resistance to wear and the high stresses associated with jumps and impacts. Together, these features help extend the drivetrain’s service life while maintaining consistent performance over time.

Fits: 

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