BETA XTRAINER 300 2T 2018. BETA XTRAINER 300 2T 2019. BETA XTRAINER 300 2T 2020. BETA XTRAINER 300 2T 2021. Piston Options 2-Stroke Pistons: Contain 18% silicon to reduce wear and thermal expansion, enabling tighter running tolerances for increased power, reduced noise, and longer lifespan.
