HOT RODS MAIN BEARING & SEAL KIT YAMAHA WR250F 01-21 WR250R WR250X 2008 YZ250F 01-21 YZ250FX 15-20

This comprehensive engine kit includes high-precision main bearings and seals specifically for the Yamaha WR and YZ series. It is an essential package for engine rebuilds, ensuring the crankshaft is properly supported and the crankcase is airtight.

• Bearings are manufactured to laboratory-grade tolerances for reduced friction and high-RPM durability.
• Double-lip fluorocarbon seals prevent oil leaks and maintain consistent primary compression.
• Optimised for the specific stresses found in high-performance four-stroke dirt bike engines.
• Helps restore smooth engine rotation and reduces internal mechanical vibration.