TOP END GASKET SET BETA 250 300 RR 2026 ATHENA P400060600019

This top end gasket set for Beta two-stroke 250 cc and 300 cc 2026 models provides a complete cylinder-unit sealing solution. Supplied as Athena part number P400060600019, the kit is engineered to OEM specifications for precise fit and durable performance in offroad conditions.

Features

• Validated in MXGP, AMA Supercross, Pro Motocross, and EnduroGP use

• Developed in collaboration with leading OEM manufacturers for specification-accurate fit

• Withstands mud, sand, dust, and high thermal loads typical of offroad operation

• Multi-layer embossing optimised for uniform compression and reliable sealing

• Stable sealing performance over extended use

Specifications

• Part number: P400060600019

• Type: Top end gasket kit (cylinder unit)

• Contents: head gasket, base gasket, exhaust gaskets, O-rings, washers

• Compatibility: designed to match OEM dimensions and tolerances

• Development and validation processes: 2D/3D modelling, Fuji Paper and Tin testing, FEM simulations, static and dynamic test benches

• Intended application: offroad two-stroke engines subject to mechanical and thermal stress

Vehicle Fitments

• BETA CROSS RX 250 2T 250 cc 2026

• BETA CROSS RX 350 2T 350 cc 2026

• BETA ENDURO RR 250 2T RACE 250 cc 2026

• BETA ENDURO RR 250 2T X-PRO 250 cc 2026

• BETA ENDURO RR 300 2T RACE 300 cc 2026

• BETA ENDURO RR 300 2T X-PRO 300 cc 2026

• BETA ENDURO XTRAINER 250 2T 250 cc 2026

• BETA ENDURO XTRAINER 300 2T 300 cc 2026