The BETA FRAME EVO 4T (OEM 008.31.027.80.00) is the original Beta Frame/Sub Frame component for the EVO 250 4T, EVO 300 4T, EVO 300 4T FACTORY (2018–2019). It keeps your Beta performing exactly as the factory intended. Replace it as part of normal maintenance or after wear. Original parts install without modification and keep your Beta to ...