
PROX Crankshaft Bearing and Seal Kit — manufacturer reference: 23.CBS24001. Designed for reconditioning the crankshaft on off-road machines, this kit includes the bearings and seals necessary to achieve smoother rotation and appropriate sealing for the demands of motocross.
Whether you are overhauling an engine after an intensive season or preparing for a restoration, this PROX kit provides the essential wear components to control the axial and radial play of the crankshaft and prevent oil leaks. Simple installation for a skilled DIYer or a professional mechanic: replace bearings and seals while ensuring cleanliness and proper positioning of the parts.
Compatible motorcycles (examples): YAMAHA YZ 250 F (2026), FANTIC XXF 250 (2024), YAMAHA YZ 250 FX (2024). Kit suitable for the motocross environment, allowing you to ride confidently on the track.