Prox with bearing kit Crankshaft oil sealsRef : PRO00167A / 1125657

PROX Crankshaft Bearing and Oil Seal Kit (Manufacturer part number: 23.CBS73022): the essential for a clean and reliable bottom-end rebuild. Designed to replace both worn bearings and oil seals, this kit restores the sealing and clearances of the crankshaft to limit oil leaks and unwanted vibrations during motocross outings.

• Complete kit: bearings + crankshaft oil seals
• Treated bearings to reduce friction and promote smooth operation
• Suitable for maintenance interventions and restorations after wear or engine disassembly

Easily integrable during an engine service, this PROX kit is aimed at riders and mechanics who want to bring their machine back to a state close to the original specification without seeking modifications. Ideal for motocross and enduro practices where sealing and crankshaft precision are crucial for performance and reliability.

Notable compatibilities: particularly suitable for the BETA models listed below — BETA XTRAINER 300 2T (2026), BETA XTRAINER 250 2T (2025), and BETA RR 300 2T RACING (2024). Check the part number before installation to ensure compatibility with your engine.