BETA XTRAINER 250 2T 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025. BETA XTRAINER 300 2T 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025. For 25 years, KoubaLinks has been the leader in lowering the seat height for trail riders around the world.